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

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

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Visit your global Editor Settings.


                <article class="s-hero">

<h1>Lorem ipsum title</h1>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi a maximus libero, non rutrum mi. Nunc rutrum, justo non rutrum placerat, tortor massa convallis ligula, quis convallis tortor orci eget nisi. Donec sagittis ipsum non enim fringilla pharetra. Suspendisse odio enim, consectetur laoreet enim ut, faucibus eleifend lacus. Duis nec tristique tortor. Mauris nec nisl tempor, suscipit massa eget, pharetra dui. Morbi molestie euismod urna et blandit. Nunc sit amet libero sit amet elit efficitur convallis.</p>