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<!DOCTYPE html>
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Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
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For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
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-->
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>HTML Compliant Output — CKEditor Sample</title>
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<script src="../../../ckeditor.js"></script>
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<script src="../../../samples/old/sample.js"></script>
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<link href="../../../samples/old/sample.css" rel="stylesheet">
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<meta name="ckeditor-sample-required-plugins" content="sourcearea">
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<meta name="ckeditor-sample-name" content="Output HTML">
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<meta name="ckeditor-sample-group" content="Advanced Samples">
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<meta name="ckeditor-sample-description" content="Configuring CKEditor to produce legacy HTML 4 code.">
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<meta name="description" content="Try the latest sample of CKEditor 4 and learn more about customizing your WYSIWYG editor with endless possibilities.">
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</head>
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<body>
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<h1 class="samples">
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<a href="../../../samples/old/index.html">CKEditor Samples</a> » Producing HTML Compliant Output
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</h1>
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<div class="warning deprecated">
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This sample is not maintained anymore. Check out the <a href="https://ckeditor.com/docs/ckeditor4/latest/examples/index.html">brand new samples in CKEditor Examples</a>.
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</div>
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<div class="description">
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<p>
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This sample shows how to configure CKEditor to output valid
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<a class="samples" href="http://www.w3.org/TR/html401/">HTML 4.01</a> code.
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Traditional HTML elements like <code><b></code>,
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<code><i></code>, and <code><font></code> are used in place of
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<code><strong></code>, <code><em></code>, and CSS styles.
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</p>
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<p>
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To add a CKEditor instance outputting legacy HTML 4.01 code, load the editor using a standard
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JavaScript call, and define CKEditor features to use the HTML compliant elements and attributes.
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</p>
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<p>
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A snippet of the configuration code can be seen below; check the source of this page for
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full definition:
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</p>
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<pre class="samples">
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CKEDITOR.replace( '<em>textarea_id</em>', {
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coreStyles_bold: { element: 'b' },
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coreStyles_italic: { element: 'i' },
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fontSize_style: {
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element: 'font',
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attributes: { 'size': '#(size)' }
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}
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...
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});</pre>
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</div>
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<form action="../../../samples/sample_posteddata.php" method="post">
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<p>
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<label for="editor1">
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Editor 1:
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</label>
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<textarea cols="80" id="editor1" name="editor1" rows="10"><p>This is some <b>sample text</b>. You are using <a href="https://ckeditor.com/">CKEditor</a>.</p></textarea>
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<script>
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CKEDITOR.replace( 'editor1', {
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/*
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* Ensure that htmlwriter plugin, which is required for this sample, is loaded.
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*/
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extraPlugins: 'htmlwriter',
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/*
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* Style sheet for the contents
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*/
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contentsCss: 'body {color:#000; background-color#:FFF;}',
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/*
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* Simple HTML5 doctype
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*/
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docType: '<!DOCTYPE HTML>',
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/*
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* Allowed content rules which beside limiting allowed HTML
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* will also take care of transforming styles to attributes
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* (currently only for img - see transformation rules defined below).
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*
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* Read more: https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html
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*/
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allowedContent:
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'h1 h2 h3 p pre[align]; ' +
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'blockquote code kbd samp var del ins cite q b i u strike ul ol li hr table tbody tr td th caption; ' +
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'img[!src,alt,align,width,height]; font[!face]; font[!family]; font[!color]; font[!size]; font{!background-color}; a[!href]; a[!name]',
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/*
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* Core styles.
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*/
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coreStyles_bold: { element: 'b' },
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coreStyles_italic: { element: 'i' },
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coreStyles_underline: { element: 'u' },
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coreStyles_strike: { element: 'strike' },
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/*
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* Font face.
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*/
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// Define the way font elements will be applied to the document.
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// The "font" element will be used.
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font_style: {
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element: 'font',
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attributes: { 'face': '#(family)' }
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},
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/*
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* Font sizes.
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*/
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fontSize_sizes: 'xx-small/1;x-small/2;small/3;medium/4;large/5;x-large/6;xx-large/7',
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fontSize_style: {
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element: 'font',
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attributes: { 'size': '#(size)' }
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},
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/*
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* Font colors.
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*/
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colorButton_foreStyle: {
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element: 'font',
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attributes: { 'color': '#(color)' }
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},
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colorButton_backStyle: {
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element: 'font',
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styles: { 'background-color': '#(color)' }
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},
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/*
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* Styles combo.
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*/
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stylesSet: [
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{ name: 'Computer Code', element: 'code' },
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{ name: 'Keyboard Phrase', element: 'kbd' },
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{ name: 'Sample Text', element: 'samp' },
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{ name: 'Variable', element: 'var' },
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{ name: 'Deleted Text', element: 'del' },
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{ name: 'Inserted Text', element: 'ins' },
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{ name: 'Cited Work', element: 'cite' },
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{ name: 'Inline Quotation', element: 'q' }
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],
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on: {
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pluginsLoaded: configureTransformations,
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loaded: configureHtmlWriter
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}
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});
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/*
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* Add missing content transformations.
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*/
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function configureTransformations( evt ) {
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var editor = evt.editor;
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editor.dataProcessor.htmlFilter.addRules( {
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attributes: {
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style: function( value, element ) {
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// Return #RGB for background and border colors
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return CKEDITOR.tools.convertRgbToHex( value );
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}
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}
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} );
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// Default automatic content transformations do not yet take care of
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// align attributes on blocks, so we need to add our own transformation rules.
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function alignToAttribute( element ) {
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if ( element.styles[ 'text-align' ] ) {
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element.attributes.align = element.styles[ 'text-align' ];
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delete element.styles[ 'text-align' ];
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}
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}
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editor.filter.addTransformations( [
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[ { element: 'p', right: alignToAttribute } ],
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[ { element: 'h1', right: alignToAttribute } ],
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[ { element: 'h2', right: alignToAttribute } ],
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[ { element: 'h3', right: alignToAttribute } ],
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[ { element: 'pre', right: alignToAttribute } ]
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] );
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}
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/*
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* Adjust the behavior of htmlWriter to make it output HTML like FCKeditor.
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*/
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function configureHtmlWriter( evt ) {
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var editor = evt.editor,
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dataProcessor = editor.dataProcessor;
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// Out self closing tags the HTML4 way, like <br>.
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dataProcessor.writer.selfClosingEnd = '>';
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// Make output formatting behave similar to FCKeditor.
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var dtd = CKEDITOR.dtd;
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for ( var e in CKEDITOR.tools.extend( {}, dtd.$nonBodyContent, dtd.$block, dtd.$listItem, dtd.$tableContent ) ) {
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dataProcessor.writer.setRules( e, {
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indent: true,
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breakBeforeOpen: true,
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breakAfterOpen: false,
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breakBeforeClose: !dtd[ e ][ '#' ],
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breakAfterClose: true
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});
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}
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}
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</script>
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</p>
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<p>
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<input type="submit" value="Submit">
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</p>
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</form>
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<div id="footer">
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<hr>
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<p>
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CKEditor - The text editor for the Internet - <a class="samples" href="https://ckeditor.com/">https://ckeditor.com</a>
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</p>
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<p id="copy">
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Copyright © 2003-2021, <a class="samples" href="https://cksource.com/">CKSource</a> - Frederico
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Knabben. All rights reserved.
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</p>
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</div>
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</body>
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</html>
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