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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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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

     

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Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

            
              - items = ['About', 'Products', 'News', 'Contact']
body
  header Logo
    nav.pull-right
      ul.list-inline
          each item in items
            li
              a(href='#')=item
  main 請往下滑動,再往上滑動,觀看效果
  footer I am footer
            
          
!
            
              header
  background-color: #fff
  padding: 15px 40px
  height: 48px
  position: fixed
  top: 0
  width: 100%
  box-sizing: border-box
  transition: top .4s ease-in-out
  box-shadow: 0 0 8px rgba(0,0,0,.2)
  .hideUp &
    top: -48px

main
  height: 1200px
  padding: 100px 40px
  color: #fff
  font-size: 24px

footer
  background-color: #fff
  padding: 20px 40px
  
body
  padding : 0
  margin: 0
  background: #149
  color: #888
            
          
!
            
              var bodyClass = document.body.classList,
    lastScrollY = 0;
window.addEventListener('scroll', function(){
  var st = this.scrollY;
  // 判斷是向上捲動,而且捲軸超過 200px
  if( st < lastScrollY) {
    bodyClass.remove('hideUp');
  }else{
    bodyClass.add('hideUp');
  }
  lastScrollY = st;
});
            
          
!
999px
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