diff --git a/.electron-vue/dev-runner.js b/.electron-vue/dev-runner.js
index 275e4c42..f274a314 100644
--- a/.electron-vue/dev-runner.js
+++ b/.electron-vue/dev-runner.js
@@ -51,7 +51,7 @@ function startRenderer () {
     compiler.plugin('compilation', compilation => {
       compilation.plugin('html-webpack-plugin-after-emit', (data, cb) => {
         hotMiddleware.publish({ action: 'reload' })
-        cb()
+        cb && cb()
       })
     })
 
diff --git a/.electron-vue/webpack.main.config.js b/.electron-vue/webpack.main.config.js
index ad541e42..019a30df 100644
--- a/.electron-vue/webpack.main.config.js
+++ b/.electron-vue/webpack.main.config.js
@@ -5,10 +5,10 @@ process.env.BABEL_ENV = 'main'
 const path = require('path')
 const { dependencies } = require('../package.json')
 const webpack = require('webpack')
+const proMode = process.env.NODE_ENV === 'production'
 
-const BabiliWebpackPlugin = require('babili-webpack-plugin')
-
-let mainConfig = {
+const mainConfig = {
+  mode: 'development',
   entry: {
     main: path.join(__dirname, '../src/main/index.js')
   },
@@ -40,8 +40,8 @@ let mainConfig = {
     ]
   },
   node: {
-    __dirname: process.env.NODE_ENV !== 'production',
-    __filename: process.env.NODE_ENV !== 'production'
+    __dirname: !proMode,
+    __filename: !proMode
   },
   output: {
     filename: '[name].js',
@@ -60,7 +60,7 @@ let mainConfig = {
 /**
  * Adjust mainConfig for development settings
  */
-if (process.env.NODE_ENV !== 'production') {
+if (!proMode) {
   mainConfig.plugins.push(
     new webpack.DefinePlugin({
       '__static': `"${path.join(__dirname, '../static').replace(/\\/g, '\\\\')}"`
@@ -71,12 +71,10 @@ if (process.env.NODE_ENV !== 'production') {
 /**
  * Adjust mainConfig for production settings
  */
-if (process.env.NODE_ENV === 'production') {
+if (proMode) {
+  mainConfig.mode = 'production'
   mainConfig.plugins.push(
-    new BabiliWebpackPlugin(),
-    new webpack.DefinePlugin({
-      'process.env.NODE_ENV': '"production"'
-    })
+    // new BabiliWebpackPlugin()
   )
 }
 
diff --git a/.electron-vue/webpack.renderer.config.js b/.electron-vue/webpack.renderer.config.js
index b9bbd53c..ecd45a27 100644
--- a/.electron-vue/webpack.renderer.config.js
+++ b/.electron-vue/webpack.renderer.config.js
@@ -3,14 +3,14 @@
 process.env.BABEL_ENV = 'renderer'
 
 const path = require('path')
-const { dependencies } = require('../package.json')
 const webpack = require('webpack')
-
-const BabiliWebpackPlugin = require('babili-webpack-plugin')
 const CopyWebpackPlugin = require('copy-webpack-plugin')
-const ExtractTextPlugin = require('extract-text-webpack-plugin')
+const MiniCssExtractPlugin = require("mini-css-extract-plugin")
 const HtmlWebpackPlugin = require('html-webpack-plugin')
+const VueLoaderPlugin = require('vue-loader/lib/plugin')
 
+const { dependencies } = require('../package.json')
+const proMode = process.env.NODE_ENV === 'production'
 /**
  * List of node_modules to include in webpack bundle
  *
@@ -18,9 +18,10 @@ const HtmlWebpackPlugin = require('html-webpack-plugin')
  * that provide pure *.vue files that need compiling
  * https://simulatedgreg.gitbooks.io/electron-vue/content/en/webpack-configurations.html#white-listing-externals
  */
-let whiteListedModules = ['vue']
+const whiteListedModules = ['vue']
 
-let rendererConfig = {
+const rendererConfig = {
+  mode: 'development',
   devtool: '#cheap-module-eval-source-map',
   entry: {
     renderer: path.join(__dirname, '../src/renderer/main.js')
@@ -43,10 +44,10 @@ let rendererConfig = {
       },
       {
         test: /\.css$/,
-        use: ExtractTextPlugin.extract({
-          fallback: 'style-loader',
-          use: 'css-loader'
-        })
+        use: [
+          proMode ? MiniCssExtractPlugin.loader : 'style-loader',
+          "css-loader"
+        ]
       },
       {
         test: /\.html$/,
@@ -64,14 +65,7 @@ let rendererConfig = {
       {
         test: /\.vue$/,
         use: {
-          loader: 'vue-loader',
-          options: {
-            extractCSS: process.env.NODE_ENV === 'production',
-            loaders: {
-              sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax=1',
-              scss: 'vue-style-loader!css-loader!sass-loader'
-            }
-          }
+          loader: 'vue-loader'
         }
       },
       {
@@ -109,7 +103,6 @@ let rendererConfig = {
     __filename: process.env.NODE_ENV !== 'production'
   },
   plugins: [
-    new ExtractTextPlugin('styles.css'),
     new HtmlWebpackPlugin({
       filename: 'index.html',
       template: path.resolve(__dirname, '../src/index.ejs'),
@@ -123,7 +116,8 @@ let rendererConfig = {
         : false
     }),
     new webpack.HotModuleReplacementPlugin(),
-    new webpack.NoEmitOnErrorsPlugin()
+    new webpack.NoEmitOnErrorsPlugin(),
+    new VueLoaderPlugin()
   ],
   output: {
     filename: '[name].js',
@@ -154,11 +148,16 @@ if (process.env.NODE_ENV !== 'production') {
 /**
  * Adjust rendererConfig for production settings
  */
-if (process.env.NODE_ENV === 'production') {
+if (proMode) {
   rendererConfig.devtool = ''
-
+  rendererConfig.mode = 'production'
   rendererConfig.plugins.push(
-    new BabiliWebpackPlugin(),
+    new MiniCssExtractPlugin({
+      // Options similar to the same options in webpackOptions.output
+      // both options are optional
+      filename: '[name].[hash].css',
+      chunkFilename: '[id].[hash].css'
+    }),
     new CopyWebpackPlugin([
       {
         from: path.join(__dirname, '../static'),
@@ -170,9 +169,6 @@ if (process.env.NODE_ENV === 'production') {
         to: path.join(__dirname, '../dist/electron/codemirror/mode/[name]/[name].js')
       }
     ]),
-    new webpack.DefinePlugin({
-      'process.env.NODE_ENV': '"production"'
-    }),
     new webpack.LoaderOptionsPlugin({
       minimize: true
     })
diff --git a/.electron-vue/webpack.web.config.js b/.electron-vue/webpack.web.config.js
index 010883a4..e10f481c 100644
--- a/.electron-vue/webpack.web.config.js
+++ b/.electron-vue/webpack.web.config.js
@@ -5,12 +5,15 @@ process.env.BABEL_ENV = 'web'
 const path = require('path')
 const webpack = require('webpack')
 
-const BabiliWebpackPlugin = require('babili-webpack-plugin')
 const CopyWebpackPlugin = require('copy-webpack-plugin')
-const ExtractTextPlugin = require('extract-text-webpack-plugin')
+const MiniCssExtractPlugin = require("mini-css-extract-plugin")
 const HtmlWebpackPlugin = require('html-webpack-plugin')
+const VueLoaderPlugin = require('vue-loader/lib/plugin')
 
-let webConfig = {
+const proMode = process.env.NODE_ENV === 'production'
+
+const webConfig = {
+  mode: 'development',
   devtool: '#cheap-module-eval-source-map',
   entry: {
     web: path.join(__dirname, '../src/renderer/main.js')
@@ -30,10 +33,10 @@ let webConfig = {
       },
       {
         test: /\.css$/,
-        use: ExtractTextPlugin.extract({
-          fallback: 'style-loader',
-          use: 'css-loader'
-        })
+        use: [
+          proMode ? MiniCssExtractPlugin.loader : 'style-loader',
+          "css-loader"
+        ]
       },
       {
         test: /\.html$/,
@@ -48,14 +51,7 @@ let webConfig = {
       {
         test: /\.vue$/,
         use: {
-          loader: 'vue-loader',
-          options: {
-            extractCSS: true,
-            loaders: {
-              sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax=1',
-              scss: 'vue-style-loader!css-loader!sass-loader'
-            }
-          }
+          loader: 'vue-loader'
         }
       },
       {
@@ -81,7 +77,6 @@ let webConfig = {
     ]
   },
   plugins: [
-    new ExtractTextPlugin('styles.css'),
     new HtmlWebpackPlugin({
       filename: 'index.html',
       template: path.resolve(__dirname, '../src/index.ejs'),
@@ -96,7 +91,8 @@ let webConfig = {
       'process.env.IS_WEB': 'true'
     }),
     new webpack.HotModuleReplacementPlugin(),
-    new webpack.NoEmitOnErrorsPlugin()
+    new webpack.NoEmitOnErrorsPlugin(),
+    new VueLoaderPlugin()
   ],
   output: {
     filename: '[name].js',
@@ -115,11 +111,17 @@ let webConfig = {
 /**
  * Adjust webConfig for production settings
  */
-if (process.env.NODE_ENV === 'production') {
+if (proMode) {
   webConfig.devtool = ''
+  webConfig.mode ='production'
 
   webConfig.plugins.push(
-    new BabiliWebpackPlugin(),
+    new MiniCssExtractPlugin({
+      // Options similar to the same options in webpackOptions.output
+      // both options are optional
+      filename: '[name].[hash].css',
+      chunkFilename: '[id].[hash].css'
+    }),
     new CopyWebpackPlugin([
       {
         from: path.join(__dirname, '../static'),
@@ -127,9 +129,6 @@ if (process.env.NODE_ENV === 'production') {
         ignore: ['.*']
       }
     ]),
-    new webpack.DefinePlugin({
-      'process.env.NODE_ENV': '"production"'
-    }),
     new webpack.LoaderOptionsPlugin({
       minimize: true
     })
diff --git a/.github/CHANGELOG.md b/.github/CHANGELOG.md
index b1f94c4a..e4cdad91 100644
--- a/.github/CHANGELOG.md
+++ b/.github/CHANGELOG.md
@@ -1,4 +1,4 @@
-### 0.11.37
+### 0.11.38
 
 **:cactus:Feature**
 
@@ -11,6 +11,7 @@
 - feature: Support `setext` heading but the default heading style is `atx`
 - feature: User list item marker setting in preference file.
 - feature: Select text from selected table (cell) only if you press Ctrl+A
+- feature: Support Multiple lines math #242
 
 **:butterfly:Optimization**
 
diff --git a/LICENSE b/LICENSE
index a1b0da1d..69a08993 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017-2018 Jocs
+Copyright (c) 2017-Present Jocs
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/build/windows/installer.nsh b/build/windows/installer.nsh
deleted file mode 100644
index 3afd2649..00000000
--- a/build/windows/installer.nsh
+++ /dev/null
@@ -1,6 +0,0 @@
-!macro customUnInstall
-  MessageBox MB_YESNO "Do you want to delete user settings?" /SD IDNO IDNO SkipRemoval
-    SetShellVarContext current
-    RMDir /r "$APPDATA\marktext"
-  SkipRemoval:
-!macroend
diff --git a/dist/electron/.gitkeep b/dist/electron/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/dist/web/.gitkeep b/dist/web/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/package-lock.json b/package-lock.json
index aff70ff0..4dd8bd48 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,6 +16,56 @@
       "integrity": "sha512-XtGk+IF57pr852UK1AhQJXqmm1WmSgS5uISL+LPs0z/iAxXouMvdlLJrHPeukP6gd7yR2rDTMSMkHNODgwIq7A==",
       "dev": true
     },
+    "@babel/code-frame": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-beta.44.tgz",
+      "integrity": "sha512-cuAuTTIQ9RqcFRJ/Y8PvTh+paepNcaGxwQwjIDRWPXmzzyAeCO4KqS9ikMvq0MCbRk6GlYKwfzStrcP3/jSL8g==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "7.0.0-beta.44"
+      }
+    },
+    "@babel/generator": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0-beta.44.tgz",
+      "integrity": "sha512-5xVb7hlhjGcdkKpMXgicAVgx8syK5VJz193k0i/0sLP6DzE6lRrU1K3B/rFefgdo9LPGMAOOOAWW4jycj07ShQ==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "7.0.0-beta.44",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.2.0",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
+      },
+      "dependencies": {
+        "jsesc": {
+          "version": "2.5.1",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.1.tgz",
+          "integrity": "sha1-5CGiqOINawgZ3yiQj3glJrlt0f4=",
+          "dev": true
+        }
+      }
+    },
+    "@babel/helper-function-name": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.44.tgz",
+      "integrity": "sha512-MHRG2qZMKMFaBavX0LWpfZ2e+hLloT++N7rfM3DYOMUOGCD8cVjqZpwiL8a0bOX3IYcQev1ruciT0gdFFRTxzg==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-get-function-arity": "7.0.0-beta.44",
+        "@babel/template": "7.0.0-beta.44",
+        "@babel/types": "7.0.0-beta.44"
+      }
+    },
+    "@babel/helper-get-function-arity": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.44.tgz",
+      "integrity": "sha512-w0YjWVwrM2HwP6/H3sEgrSQdkCaxppqFeJtAnB23pRiJB5E/O9Yp7JAAeWBl+gGEgmBFinnTyOv2RN7rcSmMiw==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "7.0.0-beta.44"
+      }
+    },
     "@babel/helper-module-imports": {
       "version": "7.0.0-beta.35",
       "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.0.0-beta.35.tgz",
@@ -45,11 +95,369 @@
         }
       }
     },
+    "@babel/helper-split-export-declaration": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0-beta.44.tgz",
+      "integrity": "sha512-aQ7QowtkgKKzPGf0j6u77kBMdUFVBKNHw2p/3HX/POt5/oz8ec5cs0GwlgM8Hz7ui5EwJnzyfRmkNF1Nx1N7aA==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "7.0.0-beta.44"
+      }
+    },
+    "@babel/highlight": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0-beta.44.tgz",
+      "integrity": "sha512-Il19yJvy7vMFm8AVAh6OZzaFoAd0hbkeMZiX3P5HGD+z7dyI7RzndHB0dg6Urh/VAFfHtpOIzDUSxmY6coyZWQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.0"
+      }
+    },
+    "@babel/template": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.0.0-beta.44.tgz",
+      "integrity": "sha512-w750Sloq0UNifLx1rUqwfbnC6uSUk0mfwwgGRfdLiaUzfAOiH0tHJE6ILQIUi3KYkjiCDTskoIsnfqZvWLBDng==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "7.0.0-beta.44",
+        "@babel/types": "7.0.0-beta.44",
+        "babylon": "7.0.0-beta.44",
+        "lodash": "^4.2.0"
+      },
+      "dependencies": {
+        "babylon": {
+          "version": "7.0.0-beta.44",
+          "resolved": "https://registry.npmjs.org/babylon/-/babylon-7.0.0-beta.44.tgz",
+          "integrity": "sha512-5Hlm13BJVAioCHpImtFqNOF2H3ieTOHd0fmFGMxOJ9jgeFqeAwsv3u5P5cR7CSeFrkgHsT19DgFJkHV0/Mcd8g==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/traverse": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.0.0-beta.44.tgz",
+      "integrity": "sha512-UHuDz8ukQkJCDASKHf+oDt3FVUzFd+QYfuBIsiNu/4+/ix6pP/C+uQZJ6K1oEfbCMv/IKWbgDEh7fcsnIE5AtA==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "7.0.0-beta.44",
+        "@babel/generator": "7.0.0-beta.44",
+        "@babel/helper-function-name": "7.0.0-beta.44",
+        "@babel/helper-split-export-declaration": "7.0.0-beta.44",
+        "@babel/types": "7.0.0-beta.44",
+        "babylon": "7.0.0-beta.44",
+        "debug": "^3.1.0",
+        "globals": "^11.1.0",
+        "invariant": "^2.2.0",
+        "lodash": "^4.2.0"
+      },
+      "dependencies": {
+        "babylon": {
+          "version": "7.0.0-beta.44",
+          "resolved": "https://registry.npmjs.org/babylon/-/babylon-7.0.0-beta.44.tgz",
+          "integrity": "sha512-5Hlm13BJVAioCHpImtFqNOF2H3ieTOHd0fmFGMxOJ9jgeFqeAwsv3u5P5cR7CSeFrkgHsT19DgFJkHV0/Mcd8g==",
+          "dev": true
+        },
+        "globals": {
+          "version": "11.5.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-11.5.0.tgz",
+          "integrity": "sha512-hYyf+kI8dm3nORsiiXUQigOU62hDLfJ9G01uyGMxhc6BKsircrUhC4uJPQPUSuq2GrTmiiEt7ewxlMdBewfmKQ==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/types": {
+      "version": "7.0.0-beta.44",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.44.tgz",
+      "integrity": "sha512-5eTV4WRmqbaFM3v9gHAIljEQJU4Ssc6fxL61JN+Oe2ga/BwyjzjamwkCVVAQjHGuAX8i0BWo42dshL8eO5KfLQ==",
+      "dev": true,
+      "requires": {
+        "esutils": "^2.0.2",
+        "lodash": "^4.2.0",
+        "to-fast-properties": "^2.0.0"
+      },
+      "dependencies": {
+        "to-fast-properties": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+          "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+          "dev": true
+        }
+      }
+    },
+    "@mrmlnc/readdir-enhanced": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
+      "integrity": "sha512-bPHp6Ji8b41szTOcaP63VlnbbO5Ny6dwAATtY6JTjh5N2OLrb5Qk/Th5cRkRQhkWCt+EJsYrNB0MiL+Gpn6e3g==",
+      "dev": true,
+      "requires": {
+        "call-me-maybe": "^1.0.1",
+        "glob-to-regexp": "^0.3.0"
+      }
+    },
+    "@nodelib/fs.stat": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.0.tgz",
+      "integrity": "sha512-LAQ1d4OPfSJ/BMbI2DuizmYrrkD9JMaTdi2hQTlI53lQ4kRQPyZQRS4CYQ7O66bnBBnP/oYdRxbk++X0xuFU6A==",
+      "dev": true
+    },
+    "@samverschueren/stream-to-observable": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz",
+      "integrity": "sha512-MI4Xx6LHs4Webyvi6EbspgyAb4D2Q2VtnCQ1blOJcoLS6mVa8lNN2rkIy1CVxfTUpoyIbCTkXES1rLXztFD1lg==",
+      "dev": true,
+      "requires": {
+        "any-observable": "^0.3.0"
+      }
+    },
+    "@sindresorhus/is": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.7.0.tgz",
+      "integrity": "sha512-ONhaKPIufzzrlNbqtWFFd+jlnemX6lJAgq9ZeiZtS7I1PIf/la7CW4m83rTXRnVnsMbW2k56pGYu7AUFJD9Pow==",
+      "dev": true
+    },
     "@types/node": {
       "version": "10.1.2",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-10.1.2.tgz",
       "integrity": "sha512-bjk1RIeZBCe/WukrFToIVegOf91Pebr8cXYBwLBIsfiGWVQ+ifwWsT59H3RxrWzWrzd1l/Amk1/ioY5Fq3/bpA=="
     },
+    "@vue/component-compiler-utils": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/@vue/component-compiler-utils/-/component-compiler-utils-1.3.0.tgz",
+      "integrity": "sha512-CerIPMzE6y4J4v68nUh2NFPjOO8zr2r8UDh/yi63E4bf7YB5Aqhm7Fv90zzTF+sOQgsqTb9dgryvpeDY1/7m9g==",
+      "dev": true,
+      "requires": {
+        "consolidate": "^0.15.1",
+        "hash-sum": "^1.0.2",
+        "lru-cache": "^4.1.2",
+        "merge-source-map": "^1.1.0",
+        "postcss": "^6.0.20",
+        "postcss-selector-parser": "^3.1.1",
+        "prettier": "^1.11.1",
+        "source-map": "^0.5.6",
+        "vue-template-es2015-compiler": "^1.6.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
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+        "cli-cursor": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
+          "integrity": "sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=",
+          "dev": true,
+          "requires": {
+            "restore-cursor": "^2.0.0"
+          }
+        },
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "diff": {
+          "version": "3.5.0",
+          "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
+          "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==",
+          "dev": true
+        },
+        "figures": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz",
+          "integrity": "sha1-OrGi0qYsi/tDGgyUy3l6L84nyWI=",
+          "dev": true,
+          "requires": {
+            "escape-string-regexp": "^1.0.5"
+          }
+        },
+        "glob": {
+          "version": "7.1.2",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
+          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "globby": {
+          "version": "8.0.1",
+          "resolved": "https://registry.npmjs.org/globby/-/globby-8.0.1.tgz",
+          "integrity": "sha512-oMrYrJERnKBLXNLVTqhm3vPEdJ/b2ZE28xN4YARiix1NOIOBPEpOUnm844K1iu/BkphCaf2WNFwMszv8Soi1pw==",
+          "dev": true,
+          "requires": {
+            "array-union": "^1.0.1",
+            "dir-glob": "^2.0.0",
+            "fast-glob": "^2.0.2",
+            "glob": "^7.1.2",
+            "ignore": "^3.3.5",
+            "pify": "^3.0.0",
+            "slash": "^1.0.0"
+          }
+        },
+        "inquirer": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-5.2.0.tgz",
+          "integrity": "sha512-E9BmnJbAKLPGonz0HeWHtbKf+EeSP93paWO3ZYoUpq/aowXvYGjjCSuashhXPpzbArIjBbji39THkxTz9ZeEUQ==",
+          "dev": true,
+          "requires": {
+            "ansi-escapes": "^3.0.0",
+            "chalk": "^2.0.0",
+            "cli-cursor": "^2.1.0",
+            "cli-width": "^2.0.0",
+            "external-editor": "^2.1.0",
+            "figures": "^2.0.0",
+            "lodash": "^4.3.0",
+            "mute-stream": "0.0.7",
+            "run-async": "^2.2.0",
+            "rxjs": "^5.5.2",
+            "string-width": "^2.1.0",
+            "strip-ansi": "^4.0.0",
+            "through": "^2.3.6"
+          }
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "onetime": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-2.0.1.tgz",
+          "integrity": "sha1-BnQoIw/WdEOyeUsiu6UotoZ5YtQ=",
+          "dev": true,
+          "requires": {
+            "mimic-fn": "^1.0.0"
+          }
+        },
+        "restore-cursor": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-2.0.0.tgz",
+          "integrity": "sha1-n37ih/gv0ybU/RYpI9YhKe7g368=",
+          "dev": true,
+          "requires": {
+            "onetime": "^2.0.0",
+            "signal-exit": "^3.0.2"
+          }
+        },
+        "string-width": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
+    "yeoman-generator": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/yeoman-generator/-/yeoman-generator-2.0.5.tgz",
+      "integrity": "sha512-rV6tJ8oYzm4mmdF2T3wjY+Q42jKF2YiiD0VKfJ8/0ZYwmhCKC9Xs2346HVLPj/xE13i68psnFJv7iS6gWRkeAg==",
+      "dev": true,
+      "requires": {
+        "async": "^2.6.0",
+        "chalk": "^2.3.0",
+        "cli-table": "^0.3.1",
+        "cross-spawn": "^6.0.5",
+        "dargs": "^5.1.0",
+        "dateformat": "^3.0.3",
+        "debug": "^3.1.0",
+        "detect-conflict": "^1.0.0",
+        "error": "^7.0.2",
+        "find-up": "^2.1.0",
+        "github-username": "^4.0.0",
+        "istextorbinary": "^2.2.1",
+        "lodash": "^4.17.10",
+        "make-dir": "^1.1.0",
+        "mem-fs-editor": "^4.0.0",
+        "minimist": "^1.2.0",
+        "pretty-bytes": "^4.0.2",
+        "read-chunk": "^2.1.0",
+        "read-pkg-up": "^3.0.0",
+        "rimraf": "^2.6.2",
+        "run-async": "^2.0.0",
+        "shelljs": "^0.8.0",
+        "text-table": "^0.2.0",
+        "through2": "^2.0.0",
+        "yeoman-environment": "^2.0.5"
+      },
+      "dependencies": {
+        "async": {
+          "version": "2.6.1",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
+          "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
+          "dev": true,
+          "requires": {
+            "lodash": "^4.17.10"
+          }
+        },
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "dateformat": {
+          "version": "3.0.3",
+          "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-3.0.3.tgz",
+          "integrity": "sha512-jyCETtSl3VMZMWeRo7iY1FL19ges1t55hMo5yaam4Jrsm5EPL89UQkoQRyiI+Yf4k8r2ZpdngkV8hr1lIdjb3Q==",
+          "dev": true
+        },
+        "load-json-file": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-4.0.0.tgz",
+          "integrity": "sha1-L19Fq5HjMhYjT9U62rZo607AmTs=",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "^4.1.2",
+            "parse-json": "^4.0.0",
+            "pify": "^3.0.0",
+            "strip-bom": "^3.0.0"
+          }
+        },
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "dev": true
+        },
+        "parse-json": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+          "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+          "dev": true,
+          "requires": {
+            "error-ex": "^1.3.1",
+            "json-parse-better-errors": "^1.0.1"
+          }
+        },
+        "path-type": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-type/-/path-type-3.0.0.tgz",
+          "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
+          "dev": true,
+          "requires": {
+            "pify": "^3.0.0"
+          }
+        },
+        "pretty-bytes": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-4.0.2.tgz",
+          "integrity": "sha1-sr+C5zUNZcbDOqlaqlpPYyf2HNk=",
+          "dev": true
+        },
+        "read-pkg": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
+          "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
+          "dev": true,
+          "requires": {
+            "load-json-file": "^4.0.0",
+            "normalize-package-data": "^2.3.2",
+            "path-type": "^3.0.0"
+          }
+        },
+        "read-pkg-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-3.0.0.tgz",
+          "integrity": "sha1-PtSWaF26D4/hGNBpHcUfSh/5bwc=",
+          "dev": true,
+          "requires": {
+            "find-up": "^2.0.0",
+            "read-pkg": "^3.0.0"
+          }
+        },
+        "strip-bom": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+          "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+          "dev": true
+        }
+      }
+    },
     "zip-stream": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-1.2.0.tgz",
diff --git a/package.json b/package.json
index cba9f759..840eaf42 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "marktext",
   "version": "0.10.21",
-  "author": "Jocs <luoran1988@126.com>",
+  "author": "Jocs <ransixi@gmail.com>",
   "description": "Next generation markdown editor",
   "license": "MIT",
   "main": "./dist/electron/main.js",
@@ -105,61 +105,59 @@
     "codemirror": "^5.36.0",
     "css-tree": "^1.0.0-alpha.28",
     "dompurify": "^1.0.3",
-    "electron-window-state": "^4.1.1",
-    "element-ui": "^2.3.3",
+    "element-ui": "^2.3.9",
     "file-icons-js": "^1.0.3",
-    "fs-extra": "^5.0.0",
+    "fs-extra": "^6.0.1",
     "fuzzaldrin": "^2.1.0",
     "html-tags": "^2.0.0",
-    "katex": "^0.9.0",
+    "katex": "^0.10.0-alpha",
     "mousetrap": "^1.6.1",
-    "parse5": "^4.0.0",
+    "parse5": "^5.0.0",
     "snabbdom": "^0.7.1",
     "snabbdom-to-html": "^5.1.1",
     "snabbdom-virtualize": "^0.7.0",
-    "turndown": "^4.0.1",
-    "turndown-plugin-gfm": "^1.0.1",
+    "turndown": "^4.0.2",
+    "turndown-plugin-gfm": "^1.0.2",
     "vue": "^2.5.16",
     "vue-electron": "^1.0.6",
-    "vuex": "^2.3.1"
+    "vuex": "^3.0.1"
   },
   "devDependencies": {
     "babel-core": "^6.26.3",
-    "babel-eslint": "^7.2.3",
-    "babel-loader": "^7.1.1",
-    "babel-plugin-component": "^1.1.0",
+    "babel-eslint": "^8.2.3",
+    "babel-loader": "^7.1.4",
+    "babel-plugin-component": "^1.1.1",
     "babel-plugin-istanbul": "^4.1.6",
     "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.6.0",
+    "babel-preset-env": "^1.7.0",
     "babel-preset-stage-0": "^6.24.1",
-    "babel-register": "^6.24.1",
-    "babili-webpack-plugin": "^0.1.2",
-    "cfonts": "^1.2.0",
+    "babel-register": "^6.26.0",
+    "cfonts": "^2.1.2",
     "chai": "^4.0.0",
-    "chalk": "^2.1.0",
-    "copy-webpack-plugin": "^4.0.1",
-    "cross-env": "^5.0.5",
-    "css-loader": "^0.28.4",
+    "chalk": "^2.4.1",
+    "copy-webpack-plugin": "^4.5.1",
+    "cross-env": "^5.1.6",
+    "css-loader": "^0.28.11",
     "del": "^3.0.0",
     "devtron": "^1.4.0",
     "electron": "^2.0.2",
     "electron-builder": "^20.14.7",
     "electron-debug": "^1.5.0",
-    "electron-devtools-installer": "^2.2.0",
-    "electron-updater": "^2.21.8",
+    "electron-devtools-installer": "^2.2.4",
+    "electron-updater": "^2.21.10",
+    "electron-window-state": "^4.1.1",
     "eslint": "^4.19.1",
-    "eslint-config-standard": "^10.2.1",
-    "eslint-friendly-formatter": "^3.0.0",
-    "eslint-loader": "^1.9.0",
-    "eslint-plugin-html": "^3.1.1",
-    "eslint-plugin-import": "^2.10.0",
-    "eslint-plugin-node": "^5.1.1",
-    "eslint-plugin-promise": "^3.5.0",
-    "eslint-plugin-standard": "^3.0.1",
-    "extract-text-webpack-plugin": "^3.0.0",
-    "file-loader": "^0.11.2",
-    "html-webpack-plugin": "^2.30.1",
-    "inject-loader": "^3.0.0",
+    "eslint-config-standard": "^11.0.0",
+    "eslint-friendly-formatter": "^4.0.1",
+    "eslint-loader": "^2.0.0",
+    "eslint-plugin-html": "^4.0.3",
+    "eslint-plugin-import": "^2.12.0",
+    "eslint-plugin-node": "^6.0.1",
+    "eslint-plugin-promise": "^3.8.0",
+    "eslint-plugin-standard": "^3.1.0",
+    "file-loader": "^1.1.11",
+    "html-webpack-plugin": "^3.2.0",
+    "inject-loader": "^4.0.1",
     "karma": "^1.3.0",
     "karma-chai": "^0.1.0",
     "karma-coverage": "^1.1.1",
@@ -168,20 +166,22 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "^0.0.31",
     "karma-webpack": "^2.0.1",
+    "mini-css-extract-plugin": "^0.4.0",
     "mocha": "^3.0.2",
     "multispinner": "^0.2.1",
     "node-loader": "^0.6.0",
-    "require-dir": "^0.3.0",
-    "spectron": "^3.7.1",
-    "style-loader": "^0.18.2",
-    "url-loader": "^0.5.9",
+    "require-dir": "^1.0.0",
+    "spectron": "^3.8.0",
+    "style-loader": "^0.21.0",
+    "url-loader": "^1.0.1",
     "vue-html-loader": "^1.2.4",
-    "vue-loader": "^14.2.2",
-    "vue-style-loader": "^3.0.1",
-    "vue-template-compiler": "^2.4.2",
-    "webpack": "^3.5.2",
-    "webpack-dev-server": "^2.7.1",
-    "webpack-hot-middleware": "^2.22.0",
-    "webpack-merge": "^4.1.0"
+    "vue-loader": "^15.2.0",
+    "vue-style-loader": "^4.1.0",
+    "vue-template-compiler": "^2.5.16",
+    "webpack": "^4.8.3",
+    "webpack-cli": "^2.1.4",
+    "webpack-dev-server": "^3.1.4",
+    "webpack-hot-middleware": "^2.22.2",
+    "webpack-merge": "^4.1.2"
   }
 }
diff --git a/src/editor/config.js b/src/editor/config.js
index 3d94d9e9..1615dfd4 100644
--- a/src/editor/config.js
+++ b/src/editor/config.js
@@ -2,9 +2,10 @@ import { generateKeyHash, genUpper2LowerKeyHash, getLongUniqueId } from './utils
 import htmlTags from 'html-tags'
 import voidHtmlTags from 'html-tags/void'
 
-export const UNDO_DEPTH = 100
 // [0.25, 0.5, 1, 2, 4, 8] <—?—> [256M, 500M/768M, 1G/1000M, 2G, 4G, 8G]
-export const DEVICE_MEMORY = navigator.deviceMemory // Get the divice memory number
+// Electron 2.0.2 not support yet! So give a default value 4
+export const DEVICE_MEMORY = navigator.deviceMemory || 4 // Get the divice memory number(Chrome >= 63)
+export const UNDO_DEPTH = DEVICE_MEMORY >= 4 ? 100 : 50
 export const HAS_TEXT_BLOCK_REG = /^(h\d|span|th|td|hr|pre)/i
 export const VOID_HTML_TAGS = voidHtmlTags
 export const HTML_TAGS = htmlTags
@@ -80,6 +81,7 @@ export const CLASS_OR_ID = genUpper2LowerKeyHash([
   'AG_HTML_ESCAPE',
   'AG_FRONT_MATTER',
   'AG_FRONT_MATTER_LINE',
+  'AG_MULTIPLE_MATH_LINE',
   'AG_CODEMIRROR_BLOCK',
   'AG_SHOW_PREVIEW',
   'AG_HTML_PREVIEW',
@@ -113,7 +115,11 @@ export const CLASS_OR_ID = genUpper2LowerKeyHash([
   'AG_MATH_TEXT',
   'AG_MATH_RENDER',
   'AG_MATH_ERROR',
+  'AG_MATH_EMPTY',
   'AG_MATH_MARKER',
+  'AG_MATH_PREVIEW',
+  'AG_MULTIPLE_MATH_BLOCK',
+  'AG_MULTIPLE_MATH',
   'AG_LOOSE_LIST_ITEM',
   'AG_TIGHT_LIST_ITEM',
   'AG_HTML_TAG',
diff --git a/src/editor/contentState/arrowCtrl.js b/src/editor/contentState/arrowCtrl.js
index 34d4ae77..9a20c162 100644
--- a/src/editor/contentState/arrowCtrl.js
+++ b/src/editor/contentState/arrowCtrl.js
@@ -89,7 +89,7 @@ const arrowCtrl = ContentState => {
       return
     }
 
-    if (block.type === 'pre' && block.functionType !== 'frontmatter') {
+    if (block.type === 'pre' && /code|html/.test(block.functionType)) {
       // handle cursor in code block. the case at firstline or lastline.
       const cm = this.codeBlocks.get(id)
       const anchorBlock = block.functionType === 'html' ? this.getParent(this.getParent(block)) : block
@@ -205,8 +205,8 @@ const arrowCtrl = ContentState => {
     }
 
     if (
-      (preBlock && preBlock.type === 'pre' && preBlock.functionType !== 'frontmatter' && event.key === EVENT_KEYS.ArrowUp) ||
-      (preBlock && preBlock.type === 'pre' && preBlock.functionType !== 'frontmatter' && event.key === EVENT_KEYS.ArrowLeft && left === 0)
+      (preBlock && preBlock.type === 'pre' && /code|html/.test(preBlock.functionType) && event.key === EVENT_KEYS.ArrowUp) ||
+      (preBlock && preBlock.type === 'pre' && /code|html/.test(preBlock.functionType) && event.key === EVENT_KEYS.ArrowLeft && left === 0)
     ) {
       event.preventDefault()
       event.stopPropagation()
@@ -222,8 +222,8 @@ const arrowCtrl = ContentState => {
 
       return this.partialRender()
     } else if (
-      (nextBlock && nextBlock.type === 'pre' && nextBlock.functionType !== 'frontmatter' && event.key === EVENT_KEYS.ArrowDown) ||
-      (nextBlock && nextBlock.type === 'pre' && nextBlock.functionType !== 'frontmatter' && event.key === EVENT_KEYS.ArrowRight && right === 0)
+      (nextBlock && nextBlock.type === 'pre' && /code|html/.test(nextBlock.functionType) && event.key === EVENT_KEYS.ArrowDown) ||
+      (nextBlock && nextBlock.type === 'pre' && /code|html/.test(nextBlock.functionType) && event.key === EVENT_KEYS.ArrowRight && right === 0)
     ) {
       event.preventDefault()
       event.stopPropagation()
diff --git a/src/editor/contentState/backspaceCtrl.js b/src/editor/contentState/backspaceCtrl.js
index ace2adb5..51e091d0 100644
--- a/src/editor/contentState/backspaceCtrl.js
+++ b/src/editor/contentState/backspaceCtrl.js
@@ -104,6 +104,7 @@ const backspaceCtrl = ContentState => {
     const { start, end } = selection.getCursorRange()
     const startBlock = this.getBlock(start.key)
     const endBlock = this.getBlock(end.key)
+
     // fix: #67 problem 1
     if (startBlock.icon) return event.preventDefault()
     // fix: unexpect remove all editor html. #67 problem 4
@@ -131,11 +132,11 @@ const backspaceCtrl = ContentState => {
     if (start.key !== end.key) {
       event.preventDefault()
       const { key, offset } = start
-      const startRemainText = startBlock.type === 'pre' && startBlock.functionType !== 'frontmatter'
+      const startRemainText = startBlock.type === 'pre' && /code|html/.test(startBlock.functionType)
         ? startBlock.text.substring(0, offset - 1)
         : startBlock.text.substring(0, offset)
 
-      const endRemainText = endBlock.type === 'pre' && endBlock.functionType !== 'frontmatter'
+      const endRemainText = endBlock.type === 'pre' && /code|html/.test(endBlock.functionType)
         ? endBlock.text.substring(end.offset - 1)
         : endBlock.text.substring(end.offset)
 
@@ -183,7 +184,7 @@ const backspaceCtrl = ContentState => {
       return tHeadHasContent || tBodyHasContent
     }
 
-    if (block.type === 'pre' && block.functionType !== 'frontmatter') {
+    if (block.type === 'pre' && /code|html/.test(block.functionType)) {
       const cm = this.codeBlocks.get(id)
       // if event.preventDefault(), you can not use backspace in language input.
       if (isCursorAtBegin(cm) && onlyHaveOneLine(cm)) {
@@ -204,9 +205,10 @@ const backspaceCtrl = ContentState => {
         this.partialRender()
       }
     } else if (
-      block.type === 'span' && block.functionType === 'frontmatter' &&
-      left === 0 && !preBlock
+      block.type === 'span' && /frontmatter|multiplemath/.test(block.functionType) &&
+      left === 0 && !block.preSibling
     ) {
+      const isMathLine = block.functionType === 'multiplemath'
       event.preventDefault()
       event.stopPropagation()
       const { key } = block
@@ -216,6 +218,9 @@ const backspaceCtrl = ContentState => {
         delete line.functionType
         this.appendChild(pBlock, line)
       }
+      if (isMathLine) {
+        parent = this.getParent(parent)
+      }
       this.insertBefore(pBlock, parent)
       this.removeBlock(parent)
 
@@ -326,7 +331,7 @@ const backspaceCtrl = ContentState => {
       const { text } = block
       const key = preBlock.key
       const offset = preBlock.text.length
-      if (preBlock.type === 'pre' && preBlock.functionType !== 'frontmatter') {
+      if (preBlock.type === 'pre' && /code|html/.test(preBlock.functionType)) {
         const cm = this.codeBlocks.get(key)
         const value = cm.getValue() + text
         cm.setValue(value)
diff --git a/src/editor/contentState/copyCutCtrl.js b/src/editor/contentState/copyCutCtrl.js
index 199ec9e5..055fba81 100644
--- a/src/editor/contentState/copyCutCtrl.js
+++ b/src/editor/contentState/copyCutCtrl.js
@@ -52,7 +52,7 @@ const copyCutCtrl = ContentState => {
     $(
       `.${CLASS_OR_ID['AG_REMOVE']}, .${CLASS_OR_ID['AG_TOOL_BAR']},
       .${CLASS_OR_ID['AG_MATH_RENDER']}, .${CLASS_OR_ID['AG_HTML_PREVIEW']},
-      .${CLASS_OR_ID['AG_COPY_REMOVE']}`
+      .${CLASS_OR_ID['AG_MATH_PREVIEW']}, .${CLASS_OR_ID['AG_COPY_REMOVE']}`
     ).remove()
     $(`.${CLASS_OR_ID['AG_EMOJI_MARKER']}`).text(':')
     $(`.${CLASS_OR_ID['AG_NOTEXT_LINK']}`).empty()
@@ -102,6 +102,18 @@ const copyCutCtrl = ContentState => {
       })
     }
 
+    const mathBlock = $(`figure.ag-multiple-math-block`)
+    if (mathBlock.length > 0) {
+      mathBlock.each((i, hb) => {
+        const ele = $(hb)
+        const id = ele.attr('id')
+        const { math } = this.getBlock(id).children[1]
+        const pre = $('<pre class="multiple-math"></pre>')
+        pre.text(math)
+        ele.replaceWith(pre)
+      })
+    }
+
     event.clipboardData.setData('text/html', $('body').html())
     event.clipboardData.setData('text/plain', text)
   }
diff --git a/src/editor/contentState/enterCtrl.js b/src/editor/contentState/enterCtrl.js
index aab6dd87..c953b85a 100644
--- a/src/editor/contentState/enterCtrl.js
+++ b/src/editor/contentState/enterCtrl.js
@@ -150,7 +150,7 @@ const enterCtrl = ContentState => {
       return
     }
     // handle cursor in code block
-    if (block.type === 'pre' && block.functionType !== 'frontmatter') {
+    if (block.type === 'pre' && block.functionType === 'code') {
       return
     }
 
@@ -197,15 +197,13 @@ const enterCtrl = ContentState => {
     // only cursor in `line block` can create `soft line break` and `hard line break`
     if (
       (event.shiftKey && block.type === 'span') ||
-      (block.type === 'span' && block.functionType === 'frontmatter')
+      (block.type === 'span' && /frontmatter|multiplemath/.test(block.functionType))
     ) {
       const { text } = block
       const newLineText = text.substring(start.offset)
       block.text = text.substring(0, start.offset)
       const newLine = this.createBlock('span', newLineText)
-      if (block.functionType === 'frontmatter') {
-        newLine.functionType = 'frontmatter'
-      }
+      newLine.functionType = block.functionType
       this.insertAfter(newLine, block)
       const { key } = newLine
       const offset = 0
@@ -374,6 +372,7 @@ const enterCtrl = ContentState => {
     const blockNeedFocus = this.codeBlockUpdate(preParagraphBlock)
     let tableNeedFocus = this.tableBlockUpdate(preParagraphBlock)
     let htmlNeedFocus = this.updateHtmlBlock(preParagraphBlock)
+    let mathNeedFocus = this.updateMathBlock(preParagraphBlock)
     let cursorBlock
 
     switch (true) {
@@ -386,6 +385,9 @@ const enterCtrl = ContentState => {
       case !!htmlNeedFocus:
         cursorBlock = htmlNeedFocus
         break
+      case !!mathNeedFocus:
+        cursorBlock = mathNeedFocus
+        break
       default:
         cursorBlock = newBlock
         break
diff --git a/src/editor/contentState/htmlBlock.js b/src/editor/contentState/htmlBlock.js
index f612cc5c..4c2d03ba 100644
--- a/src/editor/contentState/htmlBlock.js
+++ b/src/editor/contentState/htmlBlock.js
@@ -8,8 +8,7 @@ const DOMPurify = createDOMPurify(window)
 
 const htmlBlock = ContentState => {
   ContentState.prototype.createToolBar = function (tools, toolBarType) {
-    const toolBar = this.createBlock('div')
-    toolBar.editable = false
+    const toolBar = this.createBlock('div', '', false)
     toolBar.toolBarType = toolBarType
     const ul = this.createBlock('ul')
 
@@ -28,8 +27,7 @@ const htmlBlock = ContentState => {
   ContentState.prototype.createCodeInHtml = function (code, selection) {
     const codeContainer = this.createBlock('div')
     codeContainer.functionType = 'html'
-    const preview = this.createBlock('div')
-    preview.editable = false
+    const preview = this.createBlock('div', '', false)
     preview.htmlContent = DOMPurify.sanitize(escapeInBlockHtml(code), DOMPURIFY_CONFIG)
     preview.functionType = 'preview'
     const codePre = this.createBlock('pre')
diff --git a/src/editor/contentState/index.js b/src/editor/contentState/index.js
index 7b167c91..fbd8d02c 100644
--- a/src/editor/contentState/index.js
+++ b/src/editor/contentState/index.js
@@ -51,7 +51,6 @@ class ContentState {
     this.blocks = [ this.createBlockP() ]
     this.stateRender = new StateRender(eventCenter)
     this.codeBlocks = new Map()
-    this.loadMathMap = new Map()
     this.renderRange = [ null, null ]
     this.currentCursor = null
     this.prevCursor = null
@@ -122,7 +121,7 @@ class ContentState {
   setCursor () {
     const { start: { key } } = this.cursor
     const block = this.getBlock(key)
-    if (block.type === 'pre' && block.functionType !== 'frontmatter') {
+    if (block.type === 'pre' && /code|html/.test(block.functionType)) {
       const cm = this.codeBlocks.get(key)
       const { selection } = block
       if (selection) {
@@ -156,7 +155,6 @@ class ContentState {
     this.setNextRenderRange()
     this.stateRender.render(blocks, cursor, activeBlocks, matches)
     this.pre2CodeMirror(isRenderCursor)
-    this.renderMath()
     if (isRenderCursor) this.setCursor()
   }
 
@@ -175,7 +173,6 @@ class ContentState {
     this.setNextRenderRange()
     this.stateRender.partialRender(needRenderBlocks, cursor, activeBlocks, matches, startKey, endKey)
     this.pre2CodeMirror(true, [...new Set([cursorOutMostBlock, ...needRenderBlocks])])
-    this.renderMath([...new Set([cursorOutMostBlock, ...needRenderBlocks])])
     this.setCursor()
   }
 
@@ -183,12 +180,13 @@ class ContentState {
    * A block in Aganippe present a paragraph(block syntax in GFM) or a line in paragraph.
    * a line block must in a `p block` or `pre block(frontmatter)` and `p block`'s children must be line blocks.
    */
-  createBlock (type = 'span', text = '') { // span type means it is a line block.
+  createBlock (type = 'span', text = '', editable = true) { // span type means it is a line block.
     const key = getUniqueId()
     return {
       key,
       type,
       text,
+      editable,
       parent: null,
       preSibling: null,
       nextSibling: null,
@@ -310,7 +308,7 @@ class ContentState {
       if (children.length) {
         children.forEach(child => this.removeTextOrBlock(child))
       }
-    } else {
+    } else if (block.editable) {
       this.removeBlock(block)
     }
   }
@@ -365,8 +363,8 @@ class ContentState {
     if (!afterEnd) {
       const parent = this.getParent(after)
       if (parent) {
-        const isOnlyChild = this.isOnlyChild(after)
-        this.removeBlocks(before, parent, isOnlyChild, true)
+        const removeAfter = isRemoveAfter && this.isOnlyEditableChild(after)
+        this.removeBlocks(before, parent, removeAfter, true)
       }
     }
     if (isRemoveAfter) {
@@ -505,6 +503,13 @@ class ContentState {
     return !block.nextSibling && !block.preSibling
   }
 
+  isOnlyEditableChild (block) {
+    if (block.editable === false) return false
+    const parent = this.getParent(block)
+    if (!parent) throw new Error('isOnlyEditableChild method only apply for child block')
+    return parent.children.filter(child => child.editable).length === 1
+  }
+
   getLastChild (block) {
     if (block) {
       const len = block.children.length
diff --git a/src/editor/contentState/mathCtrl.js b/src/editor/contentState/mathCtrl.js
index b4e402c3..c159d513 100644
--- a/src/editor/contentState/mathCtrl.js
+++ b/src/editor/contentState/mathCtrl.js
@@ -1,40 +1,69 @@
-import katex from 'katex'
-import { CLASS_OR_ID } from '../config'
-
-import 'katex/dist/katex.min.css'
+// import { CLASS_OR_ID } from '../config'
+const LINE_BREAKS_REG = /\n/
 
 const mathCtrl = ContentState => {
-  ContentState.prototype.renderMath = function (blocks) {
-    let selector = ''
-
-    if (blocks) {
-      selector = blocks.map(block => `#${block.key} .${CLASS_OR_ID['AG_MATH_RENDER']}`).join(', ')
+  ContentState.prototype.createMathBlock = function (value = '') {
+    const FUNCTION_TYPE = 'multiplemath'
+    const mathBlock = this.createBlock('figure')
+    const textArea = this.createBlock('pre')
+    const mathPreview = this.createBlock('div', '', false)
+    if (typeof value === 'string' && value) {
+      const lines = value.replace(/^\s+/, '').split(LINE_BREAKS_REG).map(line => this.createBlock('span', line))
+      for (const line of lines) {
+        line.functionType = FUNCTION_TYPE
+        this.appendChild(textArea, line)
+      }
     } else {
-      selector = `.${CLASS_OR_ID['AG_MATH_RENDER']}`
+      const emptyLine = this.createBlock('span')
+      emptyLine.functionType = FUNCTION_TYPE
+      this.appendChild(textArea, emptyLine)
     }
 
-    const mathEles = document.querySelectorAll(selector)
-    const { loadMathMap } = this
-    for (const math of mathEles) {
-      const content = math.getAttribute('data-math')
-      const type = math.getAttribute('data-type')
-      const displayMode = type === 'display_math'
-      const key = `${content}_${type}`
-      if (loadMathMap.has(key)) {
-        math.innerHTML = loadMathMap.get(key)
-        continue
-      }
-      try {
-        const html = katex.renderToString(content, {
-          displayMode
-        })
-        loadMathMap.set(key, html)
-        math.innerHTML = html
-      } catch (err) {
-        math.innerHTML = 'Invalid'
-        math.classList.add(CLASS_OR_ID['AG_MATH_ERROR'])
-      }
+    mathBlock.functionType = textArea.functionType = mathPreview.functionType = FUNCTION_TYPE
+    mathPreview.math = value
+    this.appendChild(mathBlock, textArea)
+    this.appendChild(mathBlock, mathPreview)
+    return mathBlock
+  }
+
+  ContentState.prototype.initMathBlock = function (block) { // p block
+    const FUNCTION_TYPE = 'multiplemath'
+    const textArea = this.createBlock('pre')
+    const emptyLine = this.createBlock('span')
+    textArea.functionType = emptyLine.functionType = FUNCTION_TYPE
+    this.appendChild(textArea, emptyLine)
+    block.type = 'figure'
+    block.functionType = FUNCTION_TYPE
+    block.children = []
+
+    const mathPreview = this.createBlock('div', '', false)
+    mathPreview.math = ''
+    mathPreview.functionType = FUNCTION_TYPE
+
+    this.appendChild(block, textArea)
+    this.appendChild(block, mathPreview)
+    return emptyLine
+  }
+
+  ContentState.prototype.handleMathBlockClick = function (mathFigure) {
+    const { id } = mathFigure
+    const mathBlock = this.getBlock(id)
+    const textAreaBlock = mathBlock.children[0]
+    const firstLine = textAreaBlock.children[0]
+    const { key } = firstLine
+    const offset = 0
+    this.cursor = {
+      start: { key, offset },
+      end: { key, offset }
     }
+    this.partialRender()
+  }
+
+  ContentState.prototype.updateMathBlock = function (block) {
+    const { type } = block
+    if (type !== 'p') return false
+    const { text } = block.children[0]
+    return text.trim() === '$$' ? this.initMathBlock(block) : false
   }
 }
 
diff --git a/src/editor/contentState/paragraphCtrl.js b/src/editor/contentState/paragraphCtrl.js
index 7d1b6435..88e8098a 100644
--- a/src/editor/contentState/paragraphCtrl.js
+++ b/src/editor/contentState/paragraphCtrl.js
@@ -318,6 +318,27 @@ const paragraphCtrl = ContentState => {
     }
   }
 
+  ContentState.prototype.insertMathBlock = function () {
+    const { start, end } = selection.getCursorRange()
+    if (start.key !== end.key) return
+    let block = this.getBlock(start.key)
+    if (block.type === 'span') {
+      block = this.getParent(block)
+    }
+    const mathBlock = this.createMathBlock()
+    this.insertAfter(mathBlock, block)
+    if (block.type === 'p' && block.children.length === 1 && !block.children[0].text) {
+      this.removeBlock(block)
+    }
+    const cursorBlock = mathBlock.children[0].children[0]
+    const { key } = cursorBlock
+    const offset = 0
+    this.cursor = {
+      start: { key, offset },
+      end: { key, offset }
+    }
+  }
+
   ContentState.prototype.updateParagraph = function (paraType) {
     const { start, end } = selection.getCursorRange()
     const block = this.getBlock(start.key)
@@ -346,6 +367,10 @@ const paragraphCtrl = ContentState => {
         this.handleQuoteMenu()
         break
       }
+      case 'mathblock': {
+        this.insertMathBlock()
+        break
+      }
       case 'heading 1':
       case 'heading 2':
       case 'heading 3':
diff --git a/src/editor/contentState/pasteCtrl.js b/src/editor/contentState/pasteCtrl.js
index 42d44425..2db031e0 100644
--- a/src/editor/contentState/pasteCtrl.js
+++ b/src/editor/contentState/pasteCtrl.js
@@ -131,10 +131,15 @@ const pasteCtrl = ContentState => {
         throw new Error('unknown paste type')
     }
     // step 3: set cursor and render
-    const cursorBlock = this.getBlock(key)
+    let cursorBlock = this.getBlock(key)
     if (!cursorBlock) {
       key = startBlock.key
       offset = startBlock.text.length - cacheText.length
+      cursorBlock = startBlock
+    }
+    // TODO @Jocs duplicate with codes in updateCtrl.js
+    if (cursorBlock && cursorBlock.type === 'span' && cursorBlock.functionType === 'multiplemath') {
+      this.updateMathContent(cursorBlock)
     }
     this.cursor = {
       start: {
diff --git a/src/editor/contentState/updateCtrl.js b/src/editor/contentState/updateCtrl.js
index 9acf3465..6cd4d1d4 100644
--- a/src/editor/contentState/updateCtrl.js
+++ b/src/editor/contentState/updateCtrl.js
@@ -284,6 +284,13 @@ const updateCtrl = ContentState => {
     return null
   }
 
+  ContentState.prototype.updateMathContent = function (block) {
+    const preBlock = this.getParent(block)
+    const mathPreview = this.getNextSibling(preBlock)
+    const math = preBlock.children.map(line => line.text).join('\n')
+    mathPreview.math = math
+  }
+
   ContentState.prototype.updateState = function (event) {
     const { floatBox } = this
     const { start, end } = selection.getCursorRange()
@@ -314,7 +321,7 @@ const updateCtrl = ContentState => {
       this.removeBlocks(startBlock, endBlock)
       // there still has little bug, when the oldstart block is `pre`, the input value will be ignored.
       // and act as `backspace`
-      if (startBlock.type === 'pre' && startBlock.functionType !== 'frontmatter') {
+      if (startBlock.type === 'pre' && /code|html/.test(startBlock.functionType)) {
         event.preventDefault()
         const startRemainText = startBlock.type === 'pre'
           ? startBlock.text.substring(0, oldStart.offset - 1)
@@ -379,7 +386,7 @@ const updateCtrl = ContentState => {
       }
     }
 
-    if (block && block.type === 'pre' && block.functionType !== 'frontmatter') {
+    if (block && block.type === 'pre' && /code|html/.test(block.functionType)) {
       if (block.key !== oldKey) {
         this.cursor = lastCursor = { start, end }
         if (event.type === 'click' && oldKey) {
@@ -388,6 +395,7 @@ const updateCtrl = ContentState => {
       }
       return
     }
+
     // auto pair
     if (block && block.text !== text) {
       const BRACKET_HASH = {
@@ -423,13 +431,16 @@ const updateCtrl = ContentState => {
       block.text = text
     }
 
+    if (block && block.type === 'span' && block.functionType === 'multiplemath') {
+      this.updateMathContent(block)
+    }
+
     if (oldKey !== key || oldStart.offset !== start.offset || oldEnd.offset !== end.offset) {
       needRender = true
     }
     this.cursor = lastCursor = { start, end }
     const checkMarkedUpdate = this.checkNeedRender(block)
-    const inlineUpdatedBlock = this.isCollapse() && block.functionType !== 'frontmatter' && this.checkInlineUpdate(block)
-
+    const inlineUpdatedBlock = this.isCollapse() && !/frontmatter|multiplemath/.test(block.functionType) && this.checkInlineUpdate(block)
     if (checkMarkedUpdate || inlineUpdatedBlock || needRender) {
       this.partialRender()
     }
diff --git a/src/editor/index.css b/src/editor/index.css
index 2718b073..2110bda1 100644
--- a/src/editor/index.css
+++ b/src/editor/index.css
@@ -10,12 +10,12 @@
   }
 }
 
-h1.ag-active::before,
-h2.ag-active::before,
-h3.ag-active::before,
-h4.ag-active::before,
-h5.ag-active::before,
-h6.ag-active::before {
+#ag-editor-id > h1.ag-active::before,
+#ag-editor-id > h2.ag-active::before,
+#ag-editor-id > h3.ag-active::before,
+#ag-editor-id > h4.ag-active::before,
+#ag-editor-id > h5.ag-active::before,
+#ag-editor-id > h6.ag-active::before {
   content: attr(data-head);
   width: 20px;
   height: 20px;
@@ -25,12 +25,10 @@ h6.ag-active::before {
   position: absolute;
   top: 0;
   left: -25px;
-  border: 1px solid #C0C4CC;
-  border-radius: 3px;
-  font-size: 12px;
+  font-size: 14px;
   color: #C0C4CC;
-  transform: scale(.7);
-  font-weight: 100;
+  font-weight: 400;
+  font-style: italic;
 }
 
 .ag-paragraph:empty::after,
@@ -43,6 +41,10 @@ h6.ag-active::before {
   white-space: pre-wrap;
 }
 
+.ag-gray {
+  font-family: monospace;
+}
+
 /* .ag-soft-line-break::after {
   content: '↓';
   opacity: .5;
@@ -58,6 +60,7 @@ h6.ag-active::before {
   color: #303133;
 }
 
+figure pre.ag-multiple-math,
 div.ag-function-html pre.ag-html-block {
   width: 0;
   height: 0;
@@ -67,7 +70,8 @@ div.ag-function-html pre.ag-html-block {
   position: absolute;
 }
 
-div.ag-function-html.ag-active pre.ag-html-block {
+div.ag-function-html.ag-active pre.ag-html-block,
+figure.ag-active pre.ag-multiple-math {
   position: static;
   width: 100%;
   height: auto;
@@ -101,37 +105,38 @@ span.ag-html-tag {
 span.ag-math {
   position: relative;
   color: purple;
-  letter-spacing: 0.1em;
+  font-family: monospace;
   display: inline-block;
   vertical-align: bottom;
 }
 
 .ag-math > .ag-math-render {
   display: inline-block;
-  background: rgb(79, 79, 79);
-  padding: .3em 1em;
-  border-radius: 5px;
-  color: #fff;
+  padding: .5rem;
+  background: #fff;
+  border: 1px solid #ebeef5;
+  border-radius: 4px;
+  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
+  color: #333;
   position: absolute;
   top: 30px;
   left: 0;
   z-index: 10;
 }
 
-.ag-math > .ag-math-error {
-  color: rgba(242, 134, 94, .7);
+div.ag-math-empty {
+  color: #999;
+  font-size: 14px;
+  font-style: italic;
+  font-family: monospace;
 }
 
-.ag-math > .ag-math-render::before {
-  content: '';
-  width: 10px;
-  height: 10px;
-  display: inline-block;
-  position: absolute;
-  transform: rotate(45deg) translateX(-50%);
-  background: rgb(79, 79, 79);
-  left: 10px;
-  top: -1px;
+div.ag-math-error,
+span.ag-math > .ag-math-render.ag-math-error {
+  color: #e6a23c;
+  font-size: 14px;
+  font-style: italic;
+  font-family: monospace;
 }
 
 .ag-math > .ag-math-render .katex-display {
@@ -151,9 +156,11 @@ span.ag-math {
 }
 
 .ag-hide.ag-math > .ag-math-render {
+  padding: 0;
   top: 0;
   position: relative;
-  padding: 0;
+  border: none;
+  box-shadow: none;
   background: transparent;
 }
 
@@ -164,7 +171,7 @@ span.ag-math {
 figure {
   padding: 0;
   margin: 0;
-  margin-top: 25px;
+  margin: 1rem 0;
   position: relative;
 }
 .ag-tool-bar {
@@ -221,29 +228,18 @@ figure.ag-active .ag-tool-bar {
   display: block;
 }
 
-figure[data-role=HTML] {
-  margin-top: 0;
-}
-
-figure.ag-active[data-role=HTML]::before,
-pre.ag-active[data-role=YAML]::before {
+figure.ag-active[data-role=HTML]::before {
   content: attr(data-role);
-  width: auto;
-  padding: 0 .3rem;
-  letter-spacing: .1rem;
   height: 20px;
   text-align: center;
-  line-height: 22px;
   display: block;
   position: absolute;
   top: 0;
   left: -45px;
-  border: 1px solid #C0C4CC;
-  border-radius: 3px;
   font-size: 12px;
   color: #C0C4CC;
-  transform: scale(.7);
-  font-weight: 300;
+  font-weight: 400;
+  font-style: italic;
 }
 
 table {
@@ -340,12 +336,17 @@ p:not(.ag-active)[data-role="hr"] * {
   color: transparent;
 }
 
+pre.ag-multiple-math,
 pre.ag-front-matter {
   position: relative;
-  background: #f7f7f7;
-  padding: 1rem;
+  background: #f6f8fa;
+  padding: .5rem;
   border: 5px;
-  font-size: 15px;
+  font-size: 14px;
+  margin: 0;
+}
+pre.ag-front-matter {
+  margin: 1rem 0;
 }
 
 span.ag-front-matter-line:first-of-type:empty::after {
@@ -353,6 +354,11 @@ span.ag-front-matter-line:first-of-type:empty::after {
   color: #999;
 }
 
+span.ag-multiple-math-line:first-of-type:empty::after {
+  content: 'Input Mathematical Formula...';
+  color: #999;
+}
+
 figure,
 pre.ag-html-block,
 div.ag-function-html,
@@ -365,22 +371,70 @@ pre.ag-code-block {
 
 pre.ag-code-block {
   margin: 1rem 0;
+  padding: 0 .5rem;
+}
+
+pre.ag-active.ag-front-matter::before,
+pre.ag-active.ag-front-matter::after {
+  content: '---';
+}
+
+pre.ag-active.ag-multiple-math::before,
+pre.ag-active.ag-multiple-math::after {
+  content: '$$';
 }
 
 pre.ag-active.ag-code-block::before,
 pre.ag-active.ag-code-block::after {
   content: '```';
+}
+
+pre.ag-active.ag-front-matter::before,
+pre.ag-active.ag-front-matter::after,
+pre.ag-active.ag-code-block::before,
+pre.ag-active.ag-code-block::after,
+pre.ag-active.ag-multiple-math::before,
+pre.ag-active.ag-multiple-math::after {
   color: #909399;
+  font-family: monospace;
   position: absolute;
   left: 0;
 }
 
+pre.ag-active.ag-front-matter::before,
+pre.ag-active.ag-multiple-math::before,
 pre.ag-active.ag-code-block::before {
   top: -20px;
 }
 
+pre.ag-active.ag-front-matter::after,
+pre.ag-active.ag-multiple-math::after,
 pre.ag-active.ag-code-block::after {
-  bottom: -25px;
+  bottom: -23px;
+}
+
+span.ag-multiple-math-line {
+  color: purple;
+  font-family: monospace;
+}
+
+figure div.ag-math-preview {
+  width: 100%;
+  text-align: center;
+}
+
+figure.ag-active div.ag-math-preview {
+  position: absolute;
+  top: calc(100% + 8px);
+  left: 50%;
+  width: auto;
+  z-index: 1;
+  transform: translateX(-50%);
+  padding: .5rem;
+  background: #fff;
+  border: 1px solid #ebeef5;
+  border-radius: 4px;
+  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
 }
 
 div.ag-html-preview {
diff --git a/src/editor/index.js b/src/editor/index.js
index 29374bc0..f2b6b8f9 100644
--- a/src/editor/index.js
+++ b/src/editor/index.js
@@ -80,6 +80,7 @@ class Aganippe {
     this.dispatchTableToolBar()
     this.dispatchCodeBlockClick()
     this.htmlPreviewClick()
+    this.mathPreviewClick()
 
     contentState.listenForPathChange()
 
@@ -429,6 +430,21 @@ class Aganippe {
     eventCenter.attachDOMEvent(container, 'click', handler)
   }
 
+  mathPreviewClick () {
+    const { eventCenter, container } = this
+    const handler = event => {
+      const target = event.target
+      const mathFigure = isInElement(target, 'ag-multiple-math-block')
+      if (mathFigure && !mathFigure.classList.contains(CLASS_OR_ID['AG_ACTIVE'])) {
+        event.preventDefault()
+        event.stopPropagation()
+        this.contentState.handleMathBlockClick(mathFigure)
+      }
+    }
+
+    eventCenter.attachDOMEvent(container, 'click', handler)
+  }
+
   listItemCheckBoxClick () {
     const { container, eventCenter } = this
     const handler = event => {
diff --git a/src/editor/parser/marked.js b/src/editor/parser/marked.js
index 0f22c96b..862803a0 100644
--- a/src/editor/parser/marked.js
+++ b/src/editor/parser/marked.js
@@ -29,7 +29,8 @@ var block = {
   table: noop,
   paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
   text: /^[^\n]+/,
-  frontmatter: /^---\n([\s\S]+?)---(?:\n+|$)/
+  frontmatter: /^---\n([\s\S]+?)---(?:\n+|$)/,
+  multiplemath: /^\$\$\n([\s\S]+?)\n\$\$(?:\n+|$)/
 };
 
 block.checkbox = /^\[([ x])\] +/;
@@ -195,16 +196,25 @@ Lexer.prototype.token = function(src, top, bq) {
       continue;
     }
 
+    // multiple line math
+    if (cap = this.rules.multiplemath.exec(src)) {
+      src = src.substring(cap[0].length)
+      this.tokens.push({
+        type: 'multiplemath',
+        text: cap[1]
+      })
+    }
+
     // fences (gfm)
     if (cap = this.rules.fences.exec(src)) {
-      src = src.substring(cap[0].length);
+      src = src.substring(cap[0].length)
       this.tokens.push({
         type: 'code',
         codeBlockStyle: 'fenced',
         lang: cap[2],
         text: cap[3]
-      });
-      continue;
+      })
+      continue
     }
 
     // heading
@@ -822,6 +832,10 @@ Renderer.prototype.frontmatter = function (text) {
   return `<pre class="front-matter">\n${text}</pre>\n`
 }
 
+Renderer.prototype.multiplemath = function (text) {
+  return `<pre class="multiple-math">\n${text}</pre>\n`
+}
+
 Renderer.prototype.code = function (code, lang, escaped, codeBlockStyle) {
   if (this.options.highlight) {
     var out = this.options.highlight(code, lang);
@@ -1073,13 +1087,17 @@ Parser.prototype.tok = function() {
         return this.renderer.hr()
       }
     case 'heading': {
-        return this.renderer.heading(
-          this.inline.output(this.token.text),
-          this.token.depth,
-          this.token.text,
-          this.token.headingStyle
-        )
-      }
+      return this.renderer.heading(
+        this.inline.output(this.token.text),
+        this.token.depth,
+        this.token.text,
+        this.token.headingStyle
+      )
+    }
+    case 'multiplemath': {
+      const { text } = this.token
+      return this.renderer.multiplemath(text)
+    }
     case 'code':
       {
         const { codeBlockStyle, text, lang, escaped } = this.token
diff --git a/src/editor/parser/parse.js b/src/editor/parser/parse.js
index 9cf38135..ca40ade5 100644
--- a/src/editor/parser/parse.js
+++ b/src/editor/parser/parse.js
@@ -101,7 +101,7 @@ const tokenizerFac = (src, beginRules, inlineRules, pos = 0, top) => {
   }
 
   if (beginRules && pos === 0) {
-    const beginR = ['header', 'hr', 'code_fense', 'display_math']
+    const beginR = ['header', 'hr', 'code_fense', 'display_math', 'multiple_math']
 
     for (const ruleName of beginR) {
       const to = beginRules[ruleName].exec(src)
@@ -488,6 +488,7 @@ export const generator = tokens => {
         result += token.escapeCharacter
         break
       case 'tail_header':
+      case 'multiple_math':
         result += token.marker
         break
       case 'hard_line_break':
diff --git a/src/editor/parser/render/index.js b/src/editor/parser/render/index.js
index 1f3c34bc..23d49308 100644
--- a/src/editor/parser/render/index.js
+++ b/src/editor/parser/render/index.js
@@ -9,6 +9,7 @@ class StateRender {
   constructor (eventCenter) {
     this.eventCenter = eventCenter
     this.loadImageMap = new Map()
+    this.loadMathMap = new Map()
     this.tokenCache = new Map()
     this.container = null
   }
diff --git a/src/editor/parser/render/renderBlock/renderContainerBlock.js b/src/editor/parser/render/renderBlock/renderContainerBlock.js
index 68db6b57..f759816e 100644
--- a/src/editor/parser/render/renderBlock/renderContainerBlock.js
+++ b/src/editor/parser/render/renderBlock/renderContainerBlock.js
@@ -24,6 +24,9 @@ export default function renderContainerBlock (block, cursor, activeBlocks, match
     if (block.functionType === 'html') { // HTML Block
       Object.assign(data.dataset, { role: block.functionType.toUpperCase() })
     }
+    if (block.functionType === 'multiplemath') {
+      selector += `.${CLASS_OR_ID['AG_MULTIPLE_MATH_BLOCK']}`
+    }
   }
   // hanle list block
   if (/ul|ol/.test(block.type) && block.listType) {
@@ -72,9 +75,11 @@ export default function renderContainerBlock (block, cursor, activeBlocks, match
   if (block.type === 'ol') {
     Object.assign(data.attrs, { start: block.start })
   }
-  if (block.type === 'pre' && block.functionType === 'frontmatter') {
-    Object.assign(data.dataset, { role: 'YAML' })
-    selector += `.${CLASS_OR_ID['AG_FRONT_MATTER']}`
+  if (block.type === 'pre' && /frontmatter|multiplemath/.test(block.functionType)) {
+    const role = block.functionType === 'frontmatter' ? 'YAML' : 'MATH'
+    const className = block.functionType === 'frontmatter' ? CLASS_OR_ID['AG_FRONT_MATTER'] : CLASS_OR_ID['AG_MULTIPLE_MATH']
+    Object.assign(data.dataset, { role })
+    selector += `.${className}`
   }
 
   return h(selector, data, block.children.map(child => this.renderBlock(child, cursor, activeBlocks, matches, useCache)))
diff --git a/src/editor/parser/render/renderBlock/renderLeafBlock.js b/src/editor/parser/render/renderBlock/renderLeafBlock.js
index ee2cf8bd..641c062c 100644
--- a/src/editor/parser/render/renderBlock/renderLeafBlock.js
+++ b/src/editor/parser/render/renderBlock/renderLeafBlock.js
@@ -1,3 +1,4 @@
+import katex from 'katex'
 import { CLASS_OR_ID, DEVICE_MEMORY } from '../../../config'
 import { tokenizer } from '../../parse'
 import { snakeToCamel } from '../../../utils'
@@ -9,13 +10,26 @@ const PRE_BLOCK_HASH = {
   'frontmatter': `.${CLASS_OR_ID['AG_FRONT_MATTER']}`
 }
 
-
-
 export default function renderLeafBlock (block, cursor, activeBlocks, matches, useCache = false) {
+  const { loadMathMap } = this
   let selector = this.getSelector(block, cursor, activeBlocks)
   // highlight search key in block
   const highlights = matches.filter(m => m.key === block.key)
-  const { text, type, headingStyle, align, htmlContent, icon, checked, key, lang, functionType, codeBlockStyle } = block
+  const {
+    text,
+    type,
+    headingStyle,
+    align,
+    htmlContent,
+    icon,
+    checked,
+    key,
+    lang,
+    functionType,
+    codeBlockStyle,
+    math,
+    editable
+  } = block
   const data = {
     attrs: {},
     dataset: {}
@@ -33,16 +47,41 @@ export default function renderLeafBlock (block, cursor, activeBlocks, matches, u
     children = tokens.reduce((acc, token) => [...acc, ...this[snakeToCamel(token.type)](h, cursor, block, token)], [])
   }
 
+  if (editable === false) {
+    Object.assign(data.attrs, {
+      contenteditable: 'false'
+    })
+  }
+
   if (/th|td/.test(type) && align) {
     Object.assign(data.attrs, {
       style: `text-align:${align}`
     })
-  } else if (type === 'div' && htmlContent !== undefined) {
-    selector += `.${CLASS_OR_ID['AG_HTML_PREVIEW']}`
-    Object.assign(data.attrs, {
-      contenteditable: 'false'
-    })
-    children = htmlToVNode(htmlContent)
+  } else if (type === 'div') {
+    if (typeof htmlContent === 'string') {
+      selector += `.${CLASS_OR_ID['AG_HTML_PREVIEW']}`
+      children = htmlToVNode(htmlContent)
+    } else if (typeof math === 'string') {
+      const key = `${math}_display_math`
+      selector += `.${CLASS_OR_ID['AG_MATH_PREVIEW']}`
+      if (math === '') {
+        children = '< Empty Mathematical Formula >'
+        selector += `.${CLASS_OR_ID['AG_MATH_EMPTY']}`
+      } else if (loadMathMap.has(key)) {
+        children = loadMathMap.get(key)
+      } else {
+        try {
+          const html = katex.renderToString(math, {
+            displayMode: true
+          })
+          children = htmlToVNode(html)
+          loadMathMap.set(key, children)
+        } catch (err) {
+          children = '< Invalid Mathematical Formula >'
+          selector += `.${CLASS_OR_ID['AG_MATH_ERROR']}`
+        }
+      }
+    }
   } else if (type === 'svg' && icon) {
     selector += '.icon'
     Object.assign(data.attrs, {
@@ -98,12 +137,17 @@ export default function renderLeafBlock (block, cursor, activeBlocks, matches, u
       })
     }
 
-    if (functionType !== 'frontmatter') {
+    if (/code|html/.test(functionType)) {
       // do not set it to '' (empty string)
       children = []
     }
-  } else if (type === 'span' && functionType === 'frontmatter') {
-    selector += `.${CLASS_OR_ID['AG_FRONT_MATTER_LINE']}`
+  } else if (type === 'span' && /frontmatter|multiplemath/.test(functionType)) {
+    if (functionType === 'frontmatter') {
+      selector += `.${CLASS_OR_ID['AG_FRONT_MATTER_LINE']}`
+    }
+    if (functionType === 'multiplemath') {
+      selector += `.${CLASS_OR_ID['AG_MULTIPLE_MATH_LINE']}`
+    }
     children = text
   }
 
diff --git a/src/editor/parser/render/renderInlines/displayMath.js b/src/editor/parser/render/renderInlines/displayMath.js
index 901059dd..5947d84f 100644
--- a/src/editor/parser/render/renderInlines/displayMath.js
+++ b/src/editor/parser/render/renderInlines/displayMath.js
@@ -1,4 +1,8 @@
+import katex from 'katex'
 import { CLASS_OR_ID } from '../../../config'
+import { htmlToVNode } from '../snabbdom'
+
+import 'katex/dist/katex.min.css'
 
 export default function displayMath (h, cursor, block, token, outerClass) {
   const className = this.getClassName(outerClass, block, token, cursor)
@@ -11,14 +15,34 @@ export default function displayMath (h, cursor, block, token, outerClass) {
 
   const { content: math, type } = token
 
+  const { loadMathMap } = this
+
+  const displayMode = type === 'display_math'
+  const key = `${math}_${type}`
+  let mathVnode = null
+  let previewSelector = `span.${CLASS_OR_ID['AG_MATH_RENDER']}`
+  if (loadMathMap.has(key)) {
+    mathVnode = loadMathMap.get(key)
+  } else {
+    try {
+      const html = katex.renderToString(math, {
+        displayMode
+      })
+      mathVnode = htmlToVNode(html)
+      loadMathMap.set(key, mathVnode)
+    } catch (err) {
+      mathVnode = '< Invalid Mathematical Formula >'
+      previewSelector += `.${CLASS_OR_ID['AG_MATH_ERROR']}`
+    }
+  }
+
   return [
     h(`span.${className}.${CLASS_OR_ID['AG_MATH_MARKER']}`, startMarker),
     h(`span.${className}.${CLASS_OR_ID['AG_MATH']}`, [
       h(`span.${CLASS_OR_ID['AG_MATH_TEXT']}`, content),
-      h(`span.${CLASS_OR_ID['AG_MATH_RENDER']}`, {
-        dataset: { math, type },
+      h(previewSelector, {
         attrs: { contenteditable: 'false' }
-      }, 'Loading')
+      }, mathVnode)
     ]),
     h(`span.${className}.${CLASS_OR_ID['AG_MATH_MARKER']}`, endMarker)
   ]
diff --git a/src/editor/parser/render/renderInlines/index.js b/src/editor/parser/render/renderInlines/index.js
index 8d5479ba..5fa14af7 100644
--- a/src/editor/parser/render/renderInlines/index.js
+++ b/src/editor/parser/render/renderInlines/index.js
@@ -23,6 +23,7 @@ import del from './del'
 import em from './em'
 import strong from './strong'
 import htmlEscape from './htmlEscape'
+import multipleMath from './multipleMath'
 
 export default {
   backlashInToken,
@@ -49,5 +50,6 @@ export default {
   del,
   em,
   strong,
-  htmlEscape
+  htmlEscape,
+  multipleMath
 }
diff --git a/src/editor/parser/render/renderInlines/multipleMath.js b/src/editor/parser/render/renderInlines/multipleMath.js
new file mode 100644
index 00000000..13b479cf
--- /dev/null
+++ b/src/editor/parser/render/renderInlines/multipleMath.js
@@ -0,0 +1,9 @@
+import { CLASS_OR_ID } from '../../../config'
+
+export default function multipleMath (h, cursor, block, token, outerClass) {
+  const { start, end } = token.range
+  const content = this.highlight(h, block, start, end, token)
+  return [
+    h(`span.${CLASS_OR_ID['AG_GRAY']}.${CLASS_OR_ID['AG_REMOVE']}`, content)
+  ]
+}
diff --git a/src/editor/parser/rules.js b/src/editor/parser/rules.js
index b21b5921..ba8adec8 100644
--- a/src/editor/parser/rules.js
+++ b/src/editor/parser/rules.js
@@ -5,7 +5,8 @@ export const beginRules = {
   'hr': /^(\*{3,}$|^\-{3,}$|^\_{3,}$)/,
   'code_fense': /^(`{3,})([^`]*)$/,
   'header': /(^\s{0,3}#{1,6}(\s{1,}|$))/,
-  'display_math': /^(\$\$)([^\$]*?[^\$\\])(\\*)\1$/
+  'display_math': /^(\$\$)([^\$]*?[^\$\\])(\\*)\1$/,
+  'multiple_math': /^(\$\$)$/
 }
 
 export const inlineRules = {
diff --git a/src/editor/utils/exportMarkdown.js b/src/editor/utils/exportMarkdown.js
index f06236d1..f059a6d9 100644
--- a/src/editor/utils/exportMarkdown.js
+++ b/src/editor/utils/exportMarkdown.js
@@ -55,6 +55,8 @@ class ExportMarkdown {
             result.push(this.normalizeTable(table, indent))
           } else if (block.functionType === 'html') {
             result.push(this.normalizeHTML(block, indent))
+          } else if (block.functionType === 'multiplemath') {
+            result.push(this.normalizeMultipleMath(block, indent))
           }
           break
 
@@ -159,6 +161,16 @@ class ExportMarkdown {
     return result.join('')
   }
 
+  normalizeMultipleMath (block, /* figure */ indent) {
+    const result = []
+    result.push('$$\n')
+    for (const line of block.children[0].children) {
+      result.push(`${line.text}\n`)
+    }
+    result.push('$$\n')
+    return result.join('')
+  }
+
   normalizeCodeBlock (block, indent) {
     const result = []
     const textList = block.text.split(LINE_BREAKS)
diff --git a/src/editor/utils/importMarkdown.js b/src/editor/utils/importMarkdown.js
index 6d902fad..f147b943 100644
--- a/src/editor/utils/importMarkdown.js
+++ b/src/editor/utils/importMarkdown.js
@@ -65,12 +65,15 @@ const importRegister = ContentState => {
       return { lang, codeBlockStyle }
     }
 
-    const isFrontMatter = node => {
+    const getPreFunctionType = node => {
+      let type = 'code'
       const classAttr = node.attrs.filter(attr => attr.name === 'class')[0]
       if (classAttr && classAttr.value) {
-        return /front-matter/.test(classAttr.value)
+        const { value } = classAttr
+        if (/front-matter/.test(value)) type = 'frontmatter'
+        if (/multiple-math/.test(value)) type = 'multiplemath'
       }
-      return false
+      return type
     }
 
     const getRowColumnCount = childNodes => {
@@ -219,17 +222,20 @@ const importRegister = ContentState => {
             break
 
           case 'pre':
-            const frontMatter = isFrontMatter(child)
-            if (frontMatter) {
+            const functionType = getPreFunctionType(child)
+            if (functionType === 'frontmatter') {
               value = child.childNodes[0].value
               block = this.createBlock('pre')
               const lines = value.replace(/^\s+/, '').split(LINE_BREAKS_REG).map(line => this.createBlock('span', line))
               for (const line of lines) {
-                line.functionType = 'frontmatter'
+                line.functionType = functionType
                 this.appendChild(block, line)
               }
-              block.functionType = 'frontmatter'
-            } else {
+              block.functionType = functionType
+            } else if (functionType === 'multiplemath') {
+              value = child.childNodes[0].value
+              block = this.createMathBlock(value)
+            } else if (functionType === 'code') {
               const codeNode = child.childNodes[0]
               const { lang, codeBlockStyle } = getLangAndType(codeNode)
               value = codeNode.childNodes[0].value
@@ -343,19 +349,29 @@ const importRegister = ContentState => {
     // set cursor
     const travel = blocks => {
       for (const block of blocks) {
-        const { key, text, children } = block
+        const { key, text, children, editable, type, functionType } = block
         if (text) {
           const offset = text.indexOf(CURSOR_DNA)
           if (offset > -1) {
             block.text = text.substring(0, offset) + text.substring(offset + CURSOR_DNA.length)
-            this.cursor = {
-              start: { key, offset },
-              end: { key, offset }
+            if (editable) {
+              this.cursor = {
+                start: { key, offset },
+                end: { key, offset }
+              }
+              // handle cursor in Math block, need to remove `CURSOR_DNA` in preview block
+              if (type === 'span' && functionType === 'multiplemath') {
+                const mathPreview = this.getNextSibling(this.getParent(block))
+                const { math } = mathPreview
+                const offset = math.indexOf(CURSOR_DNA)
+                if (offset > -1) {
+                  mathPreview.math = math.substring(0, offset) + math.substring(offset + CURSOR_DNA.length)
+                }
+              }
+              return
             }
-            return
           }
-        }
-        if (children.length) {
+        } else if (children.length) {
           travel(children)
         }
       }
diff --git a/src/editor/utils/turndownService.js b/src/editor/utils/turndownService.js
index ecf72b79..e9654998 100644
--- a/src/editor/utils/turndownService.js
+++ b/src/editor/utils/turndownService.js
@@ -15,6 +15,16 @@ export const usePluginAddRules = turndownService => {
     }
   })
 
+  // handle multiple lines math
+  turndownService.addRule('multiplemath', {
+    filter (node, options) {
+      return node.nodeName === 'PRE' && node.classList.contains('multiple-math')
+    },
+    replacement (content, node, options) {
+      return `$$\n${content}\n$$`
+    }
+  })
+
   // handle `soft line break` and `hard line break`
   // add `LINE_BREAK` to the end of soft line break and hard line break.
   turndownService.addRule('lineBreak', {
diff --git a/src/main/actions/paragraph.js b/src/main/actions/paragraph.js
index 4a5bb9d7..efd44e1e 100644
--- a/src/main/actions/paragraph.js
+++ b/src/main/actions/paragraph.js
@@ -68,6 +68,14 @@ const setCheckedMenuItem = affiliation => {
           return item.id === 'frontMatterMenuItem'
         } else if (b.functionType === 'code') {
           return item.id === 'codeFencesMenuItem'
+        } else if (b.functionType === 'html') {
+          return false
+        } else if (b.functionType === 'multiplemath') {
+          return item.id === 'mathBlockMenuItem'
+        }
+      } else if (b.type === 'figure' && b.functionType) {
+        if (b.functionType === 'table') {
+          return item.id === 'tableMenuItem'
         }
       } else {
         return b.type === MENU_ID_MAP[item.id]
@@ -90,10 +98,15 @@ ipcMain.on('AGANI::selection-change', (e, { start, end, affiliation }) => {
   setCheckedMenuItem(affiliation)
   // handle disable
   setParagraphMenuItemStatus(true)
+
   if (
     (/th|td/.test(start.type) && /th|td/.test(end.type)) ||
     (start.type === 'span' && start.block.functionType === 'frontmatter') ||
-    (end.type === 'span' && end.block.functionType === 'frontmatter')
+    (end.type === 'span' && end.block.functionType === 'frontmatter') ||
+    (start.type === 'span' && start.block.functionType === 'multiplemath') ||
+    (end.type === 'span' && end.block.functionType === 'multiplemath') ||
+    (start.type === 'pre' && start.block.functionType === 'html') ||
+    (end.type === 'pre' && end.block.functionType === 'html')
   ) {
     setParagraphMenuItemStatus(false)
   } else if (start.key !== end.key) {
diff --git a/src/main/index.dev.js b/src/main/index.dev.js
index 6d4fc62f..714c03f1 100644
--- a/src/main/index.dev.js
+++ b/src/main/index.dev.js
@@ -7,9 +7,6 @@
 
 /* eslint-disable */
 
-// Set environment for development
-process.env.NODE_ENV = 'development'
-
 // Install `electron-debug` with `devtron`
 require('electron-debug')({ showDevTools: false })
 
diff --git a/src/main/menus/paragraph.js b/src/main/menus/paragraph.js
index f16c9fc1..937e638a 100644
--- a/src/main/menus/paragraph.js
+++ b/src/main/menus/paragraph.js
@@ -93,6 +93,14 @@ export default {
     click (menuItem, browserWindow) {
       actions.paragraph(browserWindow, 'blockquote')
     }
+  }, {
+    id: 'mathBlockMenuItem',
+    label: 'Math Block',
+    type: 'checkbox',
+    accelerator: 'Alt+CmdOrCtrl+M',
+    click (menuItem, browserWindow) {
+      actions.paragraph(browserWindow, 'mathblock')
+    }
   }, {
     type: 'separator'
   }, {
diff --git a/src/renderer/components/editor.vue b/src/renderer/components/editor.vue
index e4b58cac..ccdf4271 100644
--- a/src/renderer/components/editor.vue
+++ b/src/renderer/components/editor.vue
@@ -67,9 +67,9 @@
 
   const STANDAR_Y = 320
   const PARAGRAPH_CMD = [
-    'ul-bullet', 'ul-task', 'ol-order', 'pre', 'blockquote', 'heading 1', 'heading 2', 'heading 3',
-    'heading 4', 'heading 5', 'heading 6', 'upgrade heading', 'degrade heading', 'paragraph', 'hr',
-    'loose-list-item', 'front-matter'
+    'ul-bullet', 'ul-task', 'ol-order', 'pre', 'blockquote', 'mathblock', 'heading 1', 'heading 2',
+    'heading 3', 'heading 4', 'heading 5', 'heading 6', 'upgrade heading', 'degrade heading',
+    'paragraph', 'hr', 'loose-list-item', 'front-matter'
   ]
 
   export default {
diff --git a/src/renderer/util/index.js b/src/renderer/util/index.js
index 98c7f3e2..d04b0cd2 100644
--- a/src/renderer/util/index.js
+++ b/src/renderer/util/index.js
@@ -109,8 +109,8 @@ export const adjustCursor = (cursor, preline, line, nextline) => {
     }
   }
 
-  // Need to adjust the cursor when cursor in the first or last line of code block.
-  if (/```[\S]*/.test(line)) {
+  // Need to adjust the cursor when cursor in the first or last line of code/math block.
+  if (/```[\S]*/.test(line) || /^\$\$$/.test(line)) {
     if (typeof nextline === 'string' && /\S/.test(nextline)) {
       newCursor.line += 1
       newCursor.ch = 0
diff --git a/static/themes/dark.css b/static/themes/dark.css
index 26b50e51..5a1d87a2 100755
--- a/static/themes/dark.css
+++ b/static/themes/dark.css
@@ -372,10 +372,30 @@ code {
 }
 
 #ag-editor-id pre.ag-html-block {
-    padding: .4rem 1rem;
+    padding: 0 .5rem;
     margin-top: 0;
 }
 
+#ag-editor-id pre.ag-front-matter {
+  background: transparent;
+  border-bottom: 1px dashed #efefef;
+}
+
+#ag-editor-id pre.ag-multiple-math {
+  background: transparent;
+  border: 1px solid #909399;
+}
+
+#ag-editor-id span.ag-math-text,
+#ag-editor-id pre.ag-multiple-math span.ag-multiple-math-line {
+  color: lightsalmon;
+}
+
+#ag-editor-id div.ag-math-preview {
+  background: #303133;
+  border-color: #333;
+}
+
 #ag-editor-id pre.ag-code-block,
 #ag-editor-id pre.ag-html-block {
   font-size: 90%;
diff --git a/static/themes/light.css b/static/themes/light.css
index 42cd2e54..13ee3b2a 100644
--- a/static/themes/light.css
+++ b/static/themes/light.css
@@ -48,7 +48,7 @@ body {
 }
 
 .ag-gray {
-  color: #E4E7ED;
+  color: #C0C4CC;
   text-decoration: none;
 }
 
@@ -317,12 +317,13 @@ tt {
 
 /* custom add */
 code {
+  padding: 0.2em 0.4em;
+  margin: 0;
+  font-size: 85%;
+  background-color: rgba(27,31,35,0.05);
+  border-radius: 3px;
   border: none;
-  padding: 2px 4px;
-  font-size: 90%;
-  color: #c7254e;
-  background-color: #f9f2f4;
-  border-radius: 4px;
+  color: #24292e;
   font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
 }
 
@@ -355,12 +356,12 @@ code {
 
 #ag-editor-id pre.ag-html-block {
   background: transparent;
-  padding: .4rem 1rem;
+  padding: 0 .5rem;
   margin-top: 0;
 }
 
 #ag-editor-id pre.ag-active.ag-html-block {
-  background: #F2F6FC;
+  background: #f6f8fa;
 }
 
 p:not(.ag-active)[data-role="hr"]::before {