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Getting started

This section explains the steps to create a simple RichTextEditor and demonstrates the basic usage of the RichTextEditor component using the Essential JS 2 quickstart seed repository. This seed repository is pre-configured with the Essential JS 2 package.

Dependencies

The following minimum dependencies are required to use the RichTextEditor.

|-- @syncfusion/ej2-richtexteditor
    |-- @syncfusion/ej2
    |-- @syncfusion/ej2-base
    |-- @syncfusion/ej2-buttons
    |-- @syncfusion/ej2-data
    |-- @syncfusion/ej2-inputs
    |-- @syncfusion/ej2-lists
    |-- @syncfusion/ej2-navigations
    |-- @syncfusion/ej2-popups
    |-- @syncfusion/ej2-splitbuttons

Setup for local development

Clone the Essential JS 2 quickstart application project from GitHub, and install the necessary npm packages using the following command line scripts.

git clone https://github.com/syncfusion/ej2-quickstart.git quickstart
cd quickstart
npm install

Configuring system JS

Map the Syncfusion RichTextEditor packages in the system.config.js configuration file

System.config({
    paths: {
          "syncfusion:": "./node_modules/@syncfusion/"
          },
    map: {
        main: "index.ts",
        typescript: "https://unpkg.com/typescript@2.2.2/lib/typescript.js",
        'plugin-json':'https://cdnjs.cloudflare.com/ajax/libs/systemjs-plugin-json/0.3.0/json.min.js',
        "@syncfusion/ej2-base": "syncfusion:ej2-base/dist/ej2-base.umd.min.js",
        "@syncfusion/ej2-buttons": "syncfusion:ej2-buttons/dist/ej2-buttons.umd.min.js",
        "@syncfusion/ej2-splitbuttons": "syncfusion:ej2-splitbuttons/dist/ej2-splitbuttons.umd.min.js",
        "@syncfusion/ej2-data": "syncfusion:ej2-data/dist/ej2-data.umd.min.js",
        "@syncfusion/ej2-dropdowns": "syncfusion:ej2-dropdowns/dist/ej2-dropdowns.umd.min.js",
        "@syncfusion/ej2-inputs": "syncfusion:ej2-inputs/dist/ej2-inputs.umd.min.js",
        "@syncfusion/ej2-lists": "syncfusion:ej2-lists/dist/ej2-lists.umd.min.js",
        "@syncfusion/ej2-navigations": "syncfusion:ej2-navigations/dist/ej2-navigations.umd.min.js",
        "@syncfusion/ej2-popups": "syncfusion:ej2-popups/dist/ej2-popups.umd.min.js",
        "@syncfusion/ej2-richtexteditor": "syncfusion:ej2-richtexteditor/dist/ej2-richtexteditor.umd.min.js"
      },
  packages: {
  'app': { main: 'app', defaultExtension: 'js' }
  }
});
System.import('app');

Adding CSS reference

Combined CSS files are available in the Essential JS 2 package root folder. This can be referenced in your [src/styles/styles.css] using the following code.

@import '../../node_modules/@syncfusion/ej2/material.css';

To know about individual component CSS, refer to the Individual Component theme files section.

Adding RichTextEditor component

To get started, add the RichTextEditor component in app.ts and index.html files. RichTextEditor can be initialized through div element or textarea element.

Place the following RichTextEditor code in the app.ts file.

import { RichTextEditor, Toolbar, Link, Image, HtmlEditor, QuickToolbar } from '@syncfusion/ej2-richtexteditor';
RichTextEditor.Inject(Toolbar, Link, Image, HtmlEditor, QuickToolbar);

let defaultRTE: RichTextEditor = new RichTextEditor({ });
defaultRTE.appendTo('#defaultRTE');

Initialize from textarea

Initialize the RichTextEditor on a textarea.

Now, add an HTML textarea element to act as the RichTextEditor element in index.html using the following code.

[src/index.html]

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" />
    <meta name="description" content="Essential JS 2" />
    <meta name="author" content="Syncfusion" />
    <link rel="shortcut icon" href="resources/favicon.ico" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />

    <!--style reference from app-->
    <link href="/styles/styles.css" rel="stylesheet" />

    <!--system js reference and configuration-->
    <script src="node_modules/systemjs/dist/system.src.js" type="text/javascript"></script>
    <script src="system.config.js" type="text/javascript"></script>
</head>

<body>
    <!--Element which will render as RTE-->
     <textarea id="defaultRTE">
     </textarea>
</body>
</html>

Output will be displayed as follows

Source
Preview
index.ts
index.html
import { RichTextEditor, Toolbar, Link, Image, HtmlEditor, QuickToolbar } from '@syncfusion/ej2-richtexteditor';
RichTextEditor.Inject(Toolbar, Link, Image, HtmlEditor, QuickToolbar);

// initialize RichTextEditor component
let defaultRTE: RichTextEditor = new RichTextEditor({ });
// render initialized RichTextEditor
defaultRTE.appendTo('#defaultRTE');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-richtexteditor/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
     <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <textarea id='defaultRTE'></textarea>
    </div>
</body>

</html>

Initialize from <div> element

RichTextEditor can be initialized on div element as shown below

[src/index.html]

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" />
    <meta name="description" content="Essential JS 2" />
    <meta name="author" content="Syncfusion" />
    <link rel="shortcut icon" href="resources/favicon.ico" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />

    <!--style reference from app-->
    <link href="/styles/styles.css" rel="stylesheet" />

    <!--system js reference and configuration-->
    <script src="node_modules/systemjs/dist/system.src.js" type="text/javascript"></script>
    <script src="system.config.js" type="text/javascript"></script>
</head>

<body>
    <!--Element which will render as RTE-->
     <div id="defaultRTE">
       <p>The rich text editor component is WYSIWYG ("what you see is what you get") editor that provides the best user experience to create and update the content.Users can format their content using standard toolbar commands.</p>
      <p><b>Key features:</b></p>
        <ul><li><p>Provides IFRAME and DIV modes</p></li>
        <li><p>Capable of handling markdown editing.</p></li>
        <li><p>Contains a modular library to load the necessary functionality on demand.</p></li>
        <li><p>Provides a fully customizable toolbar.</p></li>
        <li><p>Provides HTML view to edit the source directly for developers.</p></li>
        <li><p>Supports third-party library integration.</p></li>
        <li><p>Allows preview of modified content before saving it.</p></li>
        <li><p>Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
        </ul>
     </div>
</body>
</html>

Now import the RichTextEditor component to your app.ts and initialize it to the element #defaultRTE as shown below.

[src/app/app.ts]

import { RichTextEditor, Toolbar, Link, Image, HtmlEditor, QuickToolbar } from '@syncfusion/ej2-richtexteditor';
RichTextEditor.Inject(Toolbar, Link, Image, HtmlEditor, QuickToolbar);

// initialize RichTextEditor component
let defaultRTE: RichTextEditor = new RichTextEditor({ });
// render initialized RichTextEditor
defaultRTE.appendTo('#defaultRTE');

Initialize from <IFRAME> element

The RichTextEditor’s content is placed in an iframe and isolated from the rest of the page.

Initialize the RichTextEditor on div element and set the enable field of iframeSettings property to true.

[src/index.html]

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" />
    <meta name="description" content="Essential JS 2" />
    <meta name="author" content="Syncfusion" />
    <link rel="shortcut icon" href="resources/favicon.ico" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />

    <!--style reference from app-->
    <link href="/styles/styles.css" rel="stylesheet" />

    <!--system js reference and configuration-->
    <script src="node_modules/systemjs/dist/system.src.js" type="text/javascript"></script>
    <script src="system.config.js" type="text/javascript"></script>
</head>

<body>
    <!--Element which will render as RTE-->
     <div id="defaultRTE">
       <p>The rich text editor component is WYSIWYG ("what you see is what you get") editor that provides the best user experience to create and update the content.Users can format their content using standard toolbar commands.</p>
      <p><b>Key features:</b></p>
        <ul><li><p>Provides IFRAME and DIV modes</p></li>
        <li><p>Capable of handling markdown editing.</p></li>
        <li><p>Contains a modular library to load the necessary functionality on demand.</p></li>
        <li><p>Provides a fully customizable toolbar.</p></li>
        <li><p>Provides HTML view to edit the source directly for developers.</p></li>
        <li><p>Supports third-party library integration.</p></li>
        <li><p>Allows preview of modified content before saving it.</p></li>
        <li><p>Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
        </ul>
     </div>
</body>
</html>

Now import the RichTextEditor component to your app.ts and initialize it to the element #defaultRTE as shown below.

[src/app/app.ts]

import { RichTextEditor, Toolbar, Link, Image, HtmlEditor, QuickToolbar } from '@syncfusion/ej2-richtexteditor';

RichTextEditor.Inject(Toolbar, Link, Image, HtmlEditor, QuickToolbar);

// initialize RichTextEditor component
let defaultRTE: RichTextEditor = new RichTextEditor({
  iframeSettings: {
      enable: true
  }});
// render initialized RichTextEditor
defaultRTE.appendTo('#defaultRTE');

Module Injection

To create RichTextEditor with additional features, inject the required modules. The following modules are used to extend RichTextEditor’s basic functionality.

  • toolbar - Inject this module to use Toolbar feature.
  • link - Inject this module to use link in RichTextEditor feature.
  • image- Inject this module to use image in RichTextEditor feature.
  • count - Inject this module to use character count in RichTextEditor.
  • markdownEditor-Inject this module to use RichTextEditor as markdown editor.
  • htmlEditor - Inject this module to use RichTextEditor as html editor.
  • quickToolbar - Inject this module to use quick toolbar feature for the target element.

These modules should be injected into the RichTextEditor using the RichTextEditor.Inject method.

Configure the Toolbar

Configure the toolbar with the tools using items field of the toolbarSettings property as your application requires.

Source
Preview
index.ts
index.html
import { RichTextEditor, Toolbar, HtmlEditor } from '@syncfusion/ej2-richtexteditor';

RichTextEditor.Inject(Toolbar, HtmlEditor);

let defaultRTE: RichTextEditor = new RichTextEditor({
  toolbarSettings: {
      items: ['Bold', 'Italic', 'Underline', 'StrikeThrough',
        'FontName', 'FontSize', 'FontColor', 'BackgroundColor',
        'LowerCase', 'UpperCase', '|',
        'Formats', 'Alignments', 'OrderedList', 'UnorderedList',
        'Outdent', 'Indent', '|',
        'CreateLink', 'Image', '|', 'ClearFormat', 'Print',
        'SourceCode', 'FullScreen', '|', 'Undo', 'Redo']
    }});
defaultRTE.appendTo('#defaultRTE');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-richtexteditor/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
     <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='defaultRTE'>
            <p>The rich text editor is WYSIWYG ("what you see is what you get") editor useful to create and edit content, and return the valid <a href="https://ej2.syncfusion.com/home/" target="_blank">HTML markup</a> or <a href="https://ej2.syncfusion.com/home/" target="_blank">markdown</a> of the content</p>                
            <p><b>Key features:</b></p>
              <ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes</p></li>
              <li><p>Capable of handling markdown editing.</p></li>
              <li><p>Contains a modular library to load the necessary functionality on demand.</p></li>
              <li><p>Provides a fully customizable toolbar.</p></li>
              <li><p>Provides HTML view to edit the source directly for developers.</p></li>
              <li><p>Supports third-party library integration.</p></li>
              <li><p>Allows preview of modified content before saving it.</p></li>
              <li><p>Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
              </ul>
        </div>
    </div>
    <style>
        .e-rte-quick-popup .e-rte-quick-toolbar .e-rotate-left::before {
            content: "\e76e";
        }
    
        .e-rte-quick-popup .e-rte-quick-toolbar .e-rotate-right::before {
            content: "\e726";
        }
    </style>
</body>

</html>

| and - can insert a vertical and horizontal separator lines in the toolbar.

The image module inserts an image into RichTextEditor’s content area, and the link module links external resources such as website URLs, to selected text in the RichTextEditor’s content, respectively.

The link inject module adds a link icon to the toolbar and the image inject module adds an image icon to the toolbar.

Specifies the items to be rendered in the quick toolbar based on the target element such image, link and text element. The quick toolbar opens to customize the element by clicking the target element.

Source
Preview
index.ts
index.html
import { RichTextEditor, Toolbar, Link, Image, HtmlEditor, QuickToolbar } from '@syncfusion/ej2-richtexteditor';
RichTextEditor.Inject(Toolbar, Link, Image, HtmlEditor, QuickToolbar);

let defaultRTE: RichTextEditor = new RichTextEditor({
  height: 340,
  quickToolbarSettings: {
      image: [
        'Replace', 'Align', 'Caption', 'Remove', 'InsertLink', 'OpenImageLink', '-',
        'EditImageLink', 'RemoveImageLink', 'Display', 'AltText', 'Dimension'
      ]
    },
  toolbarSettings: {
      items: ['Bold', 'Italic', 'Underline', 'StrikeThrough',
        'FontName', 'FontSize', 'FontColor', 'BackgroundColor',
        'LowerCase', 'UpperCase', '|',
        'Formats', 'Alignments', 'OrderedList', 'UnorderedList',
        'Outdent', 'Indent', '|',
        'CreateLink', 'Image', '|', 'ClearFormat', 'Print',
        'SourceCode', 'FullScreen', '|', 'Undo', 'Redo']
    }

});
defaultRTE.appendTo('#defaultRTE');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-richtexteditor/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
     <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='defaultRTE'>
            <p>The rich text editor is WYSIWYG ("what you see is what you get") editor useful to create and edit content, and return the valid <a href="https://ej2.syncfusion.com/home/" target="_blank">HTML markup</a> or <a href="https://ej2.syncfusion.com/home/" target="_blank">markdown</a> of the content</p>                
            <p><b>Key features:</b></p>
              <ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes</p></li>
              <li><p>Capable of handling markdown editing.</p></li>
              <li><p>Contains a modular library to load the necessary functionality on demand.</p></li>
              <li><p>Provides a fully customizable toolbar.</p></li>
              <li><p>Provides HTML view to edit the source directly for developers.</p></li>
              <li><p>Supports third-party library integration.</p></li>
              <li><p>Allows preview of modified content before saving it.</p></li>
              <li><p>Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
              </ul>
        </div>
    </div>
    <style>
        .e-rte-quick-popup .e-rte-quick-toolbar .e-rotate-left::before {
            content: "\e76e";
        }
    
        .e-rte-quick-popup .e-rte-quick-toolbar .e-rotate-right::before {
            content: "\e726";
        }
    </style>
</body>

</html>

Retrieve the formatted content

To retrieve the editor contents, use value property of RichTextEditor.

     let rteValue: string = defaultRTE.value;

Or, you can use the public method, getHtml to retrieve the RichTextEditor content.

  let rteValue: string = defaultRTE.getHtml();

To fetch the RichTextEditor’s text content, use getText method of RichTextEditor.

  let rteValue: string = defaultRTE.getText();

Run the application

The quickstart project is configured to compile and run the application in the browser. Use the following command to run the application.

  npm start

Output will be displayed as follows

Source
Preview
index.ts
index.html
import { RichTextEditor, Toolbar, Link, Image, HtmlEditor, QuickToolbar } from '@syncfusion/ej2-richtexteditor';
RichTextEditor.Inject(Toolbar, Link, Image, HtmlEditor, QuickToolbar);

let defaultRTE: RichTextEditor = new RichTextEditor({
  height: 340,
  quickToolbarSettings: {
    image: [
      'Replace', 'Align', 'Caption', 'Remove', 'InsertLink', 'OpenImageLink', '-',
      'EditImageLink', 'RemoveImageLink', 'Display', 'AltText', 'Dimension'
    ],
    link: ['Open', 'Edit', 'UnLink']
    },
  toolbarSettings: {
      items: ['Bold', 'Italic', 'Underline', 'StrikeThrough',
        'FontName', 'FontSize', 'FontColor', 'BackgroundColor',
        'LowerCase', 'UpperCase', '|',
        'Formats', 'Alignments', 'OrderedList', 'UnorderedList',
        'Outdent', 'Indent', '|',
        'CreateLink', 'Image', '|', 'ClearFormat', 'Print',
        'SourceCode', 'FullScreen', '|', 'Undo', 'Redo']
    }

});
defaultRTE.appendTo('#defaultRTE');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 RichTextEditor</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-richtexteditor/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
     <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='defaultRTE'>
            <p>The rich text editor is WYSIWYG ("what you see is what you get") editor useful to create and edit content, and return the valid <a href="https://ej2.syncfusion.com/home/" target="_blank">HTML markup</a> or <a href="https://ej2.syncfusion.com/home/" target="_blank">markdown</a> of the content</p>                
            <p><b>Key features:</b></p>
              <ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes</p></li>
              <li><p>Capable of handling markdown editing.</p></li>
              <li><p>Contains a modular library to load the necessary functionality on demand.</p></li>
              <li><p>Provides a fully customizable toolbar.</p></li>
              <li><p>Provides HTML view to edit the source directly for developers.</p></li>
              <li><p>Supports third-party library integration.</p></li>
              <li><p>Allows preview of modified content before saving it.</p></li>
              <li><p>Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
              </ul>
        </div>
    </div>
    <style>
        .e-rte-quick-popup .e-rte-quick-toolbar .e-rotate-left::before {
            content: "\e76e";
        }
    
        .e-rte-quick-popup .e-rte-quick-toolbar .e-rotate-right::before {
            content: "\e726";
        }
    </style>
</body>

</html>

See Also