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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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You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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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Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

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Code Indentation


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.

  <img class="image-left" src="https://placeholdit.imgix.net/~text?txtsize=23&txt=100%C3%97100&w=100&h=100" alt="" />
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Debitis placeat velit cumque. Earum unde excepturi, id repudiandae. Voluptatum soluta magnam numquam qui iure quidem nihil, earum atque dolor amet facilis. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perferendis nam, necessitatibus. Reprehenderit atque cupiditate a iure repellendus, quasi consectetur deserunt suscipit, quis illo sunt cum ullam, culpa officiis nam dolor. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Laudantium veritatis dolorem et fugit aliquid impedit aperiam vel quod voluptates fugiat, consectetur inventore id rem animi commodi eveniet unde minus accusamus! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facilis aperiam quas cumque ipsam, ea, repellat omnis excepturi dolor delectus laboriosam, nulla at. Quasi itaque dolores obcaecati error dolorem modi, dicta! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Dolore magnam aperiam, distinctio accusantium eum in, optio nobis. Nisi dicta fugit nesciunt ab, obcaecati placeat a cumque tenetur molestiae optio accusamus.</p>
              html {
  box-sizing: border-box;
  font-family: sans-serif;
  color: #aaa;
*, *:before, *:after {
  box-sizing: inherit;

.image-left {
  float: left;

/* all css below here is for illustrative purposes */

.image-left {
  margin: 0 20px 20px 0;

🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.
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