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.

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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.


Auto Save

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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.

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="box">
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam tristique arcu at turpis scelerisque, ut efficitur enim lacinia. Cras malesuada varius velit ac pretium. Nunc dignissim fermentum quam, at rutrum neque convallis fermentum. Duis sit amet tortor eu elit porta cursus. Nunc rutrum auctor volutpat. Praesent congue nisl ac risus finibus condimentum in eget dolor. Etiam et aliquet elit, et commodo est.</p>


                body {
  align-items: center;
  background: rgb(255,51,102);
  display: flex;
  height: 100vh;
  justify-content: center;
  line-height: 1.5;

.box {
  background-color: #fff;
  padding: 2em;
  width: 200px;

.box p {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;  
  overflow: hidden;
  text-overflow: ellipsis;