Pen Settings



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


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


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.


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.


<meta name="description" content="CSS Tabs" />
<link rel="stylesheet" href="//">
<link href='' rel='stylesheet' type='text/css'>
<title>CSS Tabs</title>
<meta charset=utf-8>
  <div class="tabbed">
    <input type="radio" name="tabs" id="tab-nav-1" checked>
    <label for="tab-nav-1">HTML</label>
    <input type="radio" name="tabs" id="tab-nav-2">
    <label for="tab-nav-2">CSS</label>
    <input type="radio" name="tabs" id="tab-nav-3">
    <label for="tab-nav-3">Javascript</label>
    <input type="radio" name="tabs" id="tab-nav-4">
    <label for="tab-nav-4">Output</label>
    <div class="tabs">
      <div><h2>HTML</h2><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sit amet nulla tortor, a posuere urna. Praesent urna quam, semper ut ultricies et, mollis ac elit. </p><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sit amet nulla tortor, a posuere urna. Praesent urna quam, semper ut ultricies et, mollis ac elit. Suspendisse tempor, lacus id consectetur sagittis, lorem odio dignissim nulla, a condimentum sem neque sed ligula. Maecenas id risus eros, eget porttitor metus. Quisque pellentesque neque dignissim nisl pellentesque vitae tempus urna eleifend. Nullam egestas, neque id placerat luctus, nibh velit pharetra nulla, vel pretium justo massa ut elit. Vivamus nec auctor nunc.</p></div>
      <div><h2>CSS</h2><p>Maecenas dictum, urna ut consequat condimentum, est dui commodo diam, ac pretium dui ante eu quam. Curabitur posuere metus nec tellus venenatis placerat. Ut egestas neque in odio vulputate gravida. In at justo ac est laoreet eleifend vel quis arcu. Aliquam erat volutpat. Proin vitae vehicula neque. Nam tempus erat ac ante tincidunt tincidunt. Pellentesque eu nibh sapien. Nunc augue magna, lacinia eget congue eget, mattis id tortor. Fusce id vestibulum neque. Proin tincidunt tellus ut risus lobortis cursus. Duis sit amet urna vel sapien ullamcorper varius.</p></div>
      <div><h2>Javascript</h2><p>Duis luctus dolor ac erat luctus hendrerit. Aenean id congue magna. Proin sit amet elit vel lacus ornare dignissim imperdiet nec odio. Maecenas condimentum egestas lorem et laoreet. Donec ut leo non purus rutrum euismod vel faucibus nunc. Curabitur vel mauris nisi, vitae laoreet erat. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Maecenas ipsum odio, iaculis id vulputate vitae, vestibulum at nunc. Integer non nisl lorem. Quisque lobortis congue semper. Nunc neque nisi, consequat id egestas vitae, porta vel sem.</p></div>
      <div><h2>Output</h2><p>Fusce vel eros eu lectus ultricies fermentum vestibulum adipiscing odio. Suspendisse ultricies, metus nec dapibus pharetra, quam arcu vulputate nisl, a pretium nisi velit id ante. Nunc auctor augue sit amet orci vestibulum id placerat nulla pellentesque. Duis vel quam velit. Ut auctor ipsum quis lacus semper non pretium mi dignissim. Morbi ultrices augue eget nisi hendrerit placerat. Mauris rhoncus urna quis metus congue quis condimentum risus interdum. Nam lobortis lectus et enim laoreet mattis. Integer faucibus ullamcorper erat, at rhoncus leo bibendum sed. Mauris libero urna, placerat non pretium ac, elementum et arcu. Aliquam non tellus diam, vel scelerisque odio. Etiam a quam et enim vehicula feugiat posuere at dui. Phasellus at nisl quam. Integer nisi mi, varius vitae placerat viverra, dapibus vitae massa. Nullam ut orci vitae nisi ornare aliquam in eget orci.</p></div>
<script src=""></script>



                @import "compass/css3";

* {
  box-sizing: border-box;

body {
  background: url(;
  color: #eee;
  font: 1em 'PT Sans', sans-serif;

::selection {
  background-color: #4EC6DE;

.tabbed {
  width: 700px;
  margin: 50px auto;

.tabbed > input {
  display: none;

.tabbed > label {
  display: block;
  float: left;
  padding: 12px 20px;
  margin-right: 5px;
  cursor: pointer;
  transition: background-color .3s;

.tabbed > label:hover,
.tabbed > input:checked + label {
  background: #4EC6DE;

.tabs {
  clear: both;
  perspective: 600px;

.tabs > div {
  width: 700px;
  position: absolute;
  border: 2px solid #4EC6DE;
  padding: 10px 30px 40px;
  line-height: 1.4em;
  opacity: 0;
  transform: rotateX(-20deg);
  transform-origin: top center;
  transition: opacity .3s, transform 1s;
  z-index: 0;

#tab-nav-1:checked ~ .tabs > div:nth-of-type(1),
#tab-nav-2:checked ~ .tabs > div:nth-of-type(2),
#tab-nav-3:checked ~ .tabs > div:nth-of-type(3),
#tab-nav-4:checked ~ .tabs > div:nth-of-type(4){
  transform: rotateX(0);
  opacity: 1;
  z-index: 1;

@media screen and (max-width: 700px) {
  .tabbed { width: 400px }
  .tabbed > label { display: none }
  .tabs > div {
    width: 400px;
    border: none;
    padding: 0;
    opacity: 1;
    position: relative;
    transform: none;
    margin-bottom: 60px;
  .tabs > div h2 {
    border-bottom: 2px solid #4EC6DE;
    padding-bottom: .5em;