GitHub-style Markdown Editor

The tail.writer is a powerful library that can transform any textarea into fully-functional WYSIWYG Markup Editor. The script was written in Vanilla JavaScript, so no additional libraries are needed.

var el = document.getElementById('editor-textarea');
tail.writer(el, {
  width: '100%',
	height: [450, 500]

<div class="editor">
	<textarea id="editor-textarea" placeholder="Type in some Text...."></textarea>
body {
    font-family: 'Roboto', sans-serif;
	font-size: 48px;

.editor {
	margin-top: 50px;
	textarea {
		width: 100%;  
      	padding: 15px;
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