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.


  span.button &#10006;
      h1 Expand.
      p.sub by 
        a(href="" target="_blank") Joe Harry
            | There once was a wolf named <em>Knox</em>. He lived in a bright blue box. Until one day, his box blew away and he was left with only his <em>socks</em>.
            <br><br> Integer augue augue, fermentum at purus nec, euismod rutrum ex. Nulla pulvinar tortor ipsum, vel accumsan nunc rutrum sed. Praesent faucibus sollicitudin tempus. Phasellus congue ex tempor malesuada congue. Etiam vitae dui commodo, ultrices eros malesuada mi. Fusce suscipit eleifend lacus, at gravida urna gravida in. Nullam sodales a consequat leo nisl sit amet ipsum. Pellentesque aliquam dolor quam, et ultricies leo fringilla in. Nulla eu neque eu mauris malesuada efficitur ultrices sed mi. Vestibulum nec quam vitae purus ut sed velit. Vestibulum ultricies iaculis magna ut consequat.
        a SHARE
        a LEARN MORE


                $body-bg: #FAFAFA;
//Other pretty primary colors: E91E63 FF5722
$primary-col: #03A9F4;
$accent-col: #FFC400;
$accent-fallback: #FFD740;

$font-stack: Roboto, sans-serif;
$easer: cubic-bezier(0.4, 0, 0.2, 1);

body {
  font-family: $font-stack;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  color: #FFF;
  background: $body-bg;

  font-weight: 700;
  font-size: 64px;
  margin: 20px 0 0 0;
  padding: 0 20px;

  font-size: 16px;
  padding: 0 20px;

  font-style: normal;
  color: $accent-col;

  font-style: normal;
  color: $accent-fallback;
  text-decoration: none;
  padding-right: 10px;
  cursor: pointer;

  margin: 0;

  cursor: pointer;
  width: 60px;
  height: 60px;
  display: inline-block;
  font-size: 20px;
  line-height: 60px;
  font-weight: bold;
  transform: rotate(45deg);

  transition: all 0.7s $easer;
.expand .button {
  transform: rotate(630deg);

  transition: all 0.5s $easer;

.container {
  position: absolute;
  margin: auto;
  left: 0;
  right: 0;
  top: 5vh;  
  background-color: $primary-col;

  border-radius: 50%;
  width: 60px;
  max-width: 60px;
  height: 60px;
  text-align: center;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  overflow: hidden;

  transition: all 0.2s 0.45s,
              height 0.2s $easer 0.25s, 
              max-width 0.2s $easer 0.35s, 
              width 0.2s $easer 0.35s;
.container.expand {
  box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.17);
  border-radius: 0;
  width: 80%;
  height: 500px;
  max-width: 600px;
  padding: 0;

  transition: all 0.2s, max-width 0.2s $easer 0.1s, height 0.3s ease 0.25s;

.content {
  transform: translateY(100%);
  width: 100%;
  height: 100%;
  opacity: 0;
  text-align: left;

  transition: transform 0.2s $easer, opacity 0.2s 0.2s;
.expand .content {
  transform: translateY(0px);
  opacity: 1;
  transition: transform 0.7s $easer 0.05s, opacity 0s;

.content .head {
  padding: 0 0 20px 0;
.content .body {
  color: #000;
  color: rgba(0, 0, 0, 0.87);
  background-color: #FFF;
  width: 100%;
  height: 100%;
  padding: 10px 0;
  box-sizing: border-box;

.action-bar {
  padding-left: 15px;
  border-top: 1px solid #E0E0E0;
  width: 100%;
.action-bar a {
  text-transform: uppercase;
  line-height: 52px;
  color: $accent-col;


                $('.button').click(function () {