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.


                - 20.times do
    %a(href="" target="_blank") link to make this work


  background-image: url("")
  background-position: center
  background-size: cover
  background-repeat: no-repeat
  background-attachment: fixed
    background-size: 0
    position: relative

    &:before, &:after
      content: ''
      position: fixed
      left: 0
      right: 0
      z-index: -1

      background: inherit
      background-size: cover
      background-attachment: scroll
      background-position: center top
      min-height: 100%
      height: 100vw * 16 / 9
      @media (orientation: landscape)
        height: 100vw * 3 / 4
      transform: translateZ(0)
      backface-visibility: hidden

      top: 50%
      transform: translate(0,-50%)
      bottom: 0      
  background: rgba(black,.2)
  height: 8em
  margin: 4em
  position: relative
    position: absolute
    top: 50%
    left: 50%
    transform: translate(-50%,-50%)
    white-space: nowrap
    text-transform: uppercase
    text-decoration: none
    font-size: 2em
    font-family: monospace
    color: white
    text-shadow: 0 0 1px rgba(black,.5)