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.

+ add another resource


Babel is required to process package imports. If you need a different preprocessor remove all packages first.

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


Save Automatically?

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.


                <div class="container">
  <div class="columns">
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse a lacus at dolor tincidunt iaculis non ac tellus. Pellentesque sapien est, sollicitudin non dignissim id, rutrum at mauris. Mauris et dolor quis est cursus hendrerit. Praesent condimentum fermentum orci, ac venenatis nibh viverra ut. Nullam tempus leo quis mattis tempor. Cras interdum imperdiet imperdiet. Proin molestie leo vel ultrices varius. Aliquam tincidunt euismod sem, et egestas purus. Nunc ac cursus diam, et scelerisque diam. Quisque sit amet ultricies lectus, eget sodales odio. Fusce rhoncus, nunc nec faucibus euismod, odio ipsum posuere justo, et ullamcorper est eros vel turpis. In hac habitasse platea dictumst. Phasellus pellentesque aliquam massa vitae condimentum. Donec at eros varius, auctor turpis nec, tempor lacus. 


                .columns {
  column-count: 3;
  column-gap: 25px;
  column-rule: 1px solid #454545;
  -moz-column-count: 3;
  -moz-column-gap: 25px;
  -moz-column-rule: 1px solid #454545;