Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

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

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <div class="wrap-tabs">
	<ul class="tabs" id="tabs">
		<li class="tabs-item active">Tab 1</li>
		<li class="tabs-item">Tab 2</li>
		<li class="tabs-item">Tab 3</li>
		<li class="tabs-item">Tab 4</li>
		<li class="tabs-item">Tab 5</li>
	</ul>
	<div class="content">
		<div class="content-item active">
			<h1>Content 1</h1>
			<p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.</p>
		</div>
		<div class="content-item">
			<h1>Content 2</h1>
			<p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste
				Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.</p>
		</div>
		<div class="content-item">
			<h1>Content 3</h1>
			<p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio <br>tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.</p>
		</div>
		<div class="content-item">
			<h1>Content 4</h1>
			<p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.</p>
		</div>
		<div class="content-item">
			<h1>Content 5</h1>
			<p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.</p>
			Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.
			Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.Lorem ipsum dolor sit, amet consectetur adipisicing elit. Optio tempora repellendus earum eos ratione quod ipsam inventore quam sequi ut repudiandae officia sit veritatis, ipsum quaerat molestias at cumque iste.
		</div>
	</div>
</div>
              
            
!

CSS

              
                .wrap-tabs {
	margin: 0 auto;
	width: 60%;
	border: 1px solid #ddd;
	background: #333;
}

.tabs {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	justify-content: center;
	color: white;
	background: #444;
	text-align: center;
	
	
	&-item {
		padding: 20px 40px;
		border-left: 4px solid  #2a2a2a;
		cursor: pointer;
		
		
		&:first-child {
			border-left: none;
		}
		
		&.active {
			background: #333;
			border-left: 4px solid #2a2a2a;
		}
	}
}

.content {
	padding: 20px 50px 50px;
	color: white;
	
	&-item {
		position: absolute;
		left: -5000px;
		&.active {
			position: relative;
			left: 0;
		}
	}
}
              
            
!

JS

              
                let tabs =  Array.prototype.slice.apply(document.querySelectorAll('.tabs-item'));
let content =  Array.prototype.slice.apply(document.querySelectorAll('.content-item'));

document.getElementById('tabs').addEventListener('click', e => {
	if (e.target.classList.contains('tabs-item')) {
		let tabSelect = tabs.indexOf(e.target);
		tabs.map( item => item.classList.remove('active'));
		tabs[tabSelect].classList.add('active');
		
		content.map( content => content.classList.remove('active'));
		content[tabSelect].classList.add('active');
	}
})
              
            
!
999px

Console