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

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.

+ add another resource

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.

⚠️ This feature can only be used by logged in users.

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.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.


<h1>Dieser Inhalt ist immer schön zentriert</h1>
<h2>… und passt sich der Browser-Breite an, wenn dadurch der Text nicht zu schlecht lesbar wird!</h2>

<p>Lorem ipsum qui ex sale facilis, vel in quidam adolescens. Cum ut ludus homero liberavisse, ex nec lobortis scripserit reformidans. Ignota posidonium ea ius, eos atomorum pericula elaboraret eu. Mea inani deseruisse ea, at nam salutandi instructior, alii impetus dolorem cum at. Nibh eruditi definiebas an mea, per ut sonet debitis delectus.</p>

<p>Principes dignissim dissentias quo ea. Eirmod maluisset mnesarchum vix no, pri eu prodesset definiebas reprehendunt. Vis mutat numquam propriae ea, duo tollit quaeque gloriatur at. Vel ut odio repudiare consequat, qui ex congue inimicus temporibus. Pro cu imperdiet constituam persequeris, volumus facilisis in vis.</p>

              * {
  box-sizing: border-box;

body {
  background-color: #1ba2ec;
  font-family: Verdana, sans-serif;

h1, h2 {
  font-size: 100%;

main {
  width: 60%;
  /* zwischen 300px und 800px passt 
  sich die Breite automatisch an! */
  min-width: 300px;
  max-width: 800px;
  margin: 40px auto;
  background-color: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 4px 2px rgba(0,0,0,.3);
🕑 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.