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Pen Settings

CSS Base

Vendor Prefixing

Add External CSS

These stylesheets will be added in this order and before the code you write in the CSS editor. You can also add another Pen here, and it will pull the CSS from it. Try typing "font" or "ribbon" below.

Quick-add: + add another resource

Add External JavaScript

These scripts will run in this order and before the code in the JavaScript editor. You can also link to another Pen here, and it will run the JavaScript from it. Also try typing the name of any popular library.

Quick-add: + add another resource

Code Indentation


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Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

              <div id="toggle">
	<p id="trigger">Click to toggle</p>
	margin: 0
	font-family: sans-serif

	width: 100%
	height: 500px
	position: absolute
	transition: .3s
		background-color: #222222

	margin: 100px
	padding: 20px
	width: 120px
	background-color: #326fa6 //random color
	border-radius: 15px
	transition: .3s
	text-align: center
		cursor: pointer
		background-color: #ab3f13
              document.addEventListener('DOMContentLoaded', () => {
	var element = document.getElementById('toggle');
	var trigger = document.getElementById('trigger');

	trigger.addEventListener('click', () => {
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