Pen Settings



CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

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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.

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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.


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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

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Visit your global Editor Settings.


                <div class="module">
  <h2 class="stripe-1">Colored Stripes</h2>
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perferendis hic sapiente asperiores minus animi nam temporibus cumque magnam doloribus vitae voluptatum cupiditate nostrum omnis vero adipisci recusandae maxime quo labore.</p>


                .module {
  background: white;
  border: 1px solid #ccc;
  margin: 3%;
  > h2 {
    padding: 1rem;
    margin: 0 0 0.5rem 0;
  > p {
    padding: 0 1rem;
  /*animation: widen 10s linear alternate infinite;*/

.stripe-1 {
  color: white;
  background: repeating-linear-gradient(
    #606dbc 10px,
    #465298 10px,
    #465298 20px

/*@keyframes widen {
  100% {
    width: 100%;