package main import ( _ "embed" "log" "net/http" "github.com/wailsapp/wails/v3/pkg/application" ) func main() { app := application.New(application.Options{ Name: "Plain", Description: "A demo of using raw HTML & CSS", Mac: application.MacOptions{ ApplicationShouldTerminateAfterLastWindowClosed: true, }, }) // Create window app.NewWebviewWindowWithOptions(&application.WebviewWindowOptions{ Title: "Plain Bundle", CSS: `body { background-color: rgba(255, 255, 255, 0); } .main { color: white; margin: 20%; }`, Mac: application.MacWindow{ InvisibleTitleBarHeight: 50, Backdrop: application.MacBackdropTranslucent, TitleBar: application.MacTitleBarHiddenInset, }, URL: "/", Assets: application.AssetOptions{ Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) w.Write([]byte(`Plain Bundle

Plain Bundle

This is a plain bundle. It has no frontend code but this was Served by the AssetServer's Handler

`)) }), }, }) err := app.Run() if err != nil { log.Fatal(err) } }