Pen Settings

HTML

CSS

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

JavaScript

Babel includes JSX processing.

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

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

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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.

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

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Visit your global Editor Settings.

HTML

              
                <div class="center">
  <input type="checkbox" id="cbx" style="display:none"/>
  <label for="cbx" class="toggle">
    <span>
      <svg width="10px" height="10px" viewBox="0 0 10 10">
        <path d="M5,1 L5,1 C2.790861,1 1,2.790861 1,5 L1,5 C1,7.209139 2.790861,9 5,9 L5,9 C7.209139,9 9,7.209139 9,5 L9,5 C9,2.790861 7.209139,1 5,1 L5,9 L5,1 Z"></path>
      </svg>
    </span>
  </label>    
</div>
              
            
!

CSS

              
                html,body
  height: 100%
  
.toggle
  position: relative
  display: block
  width: 42px
  height: 24px
  cursor: pointer
  -webkit-tap-highlight-color: transparent
  transform: translate3d(0,0,0)
  &:before
    content: ""
    position: relative
    top: 1px
    left: 1px
    width: 40px
    height: 22px
    display: block
    background: #C8CCD4
    border-radius: 12px
    transition: background .2s ease
  span
    position: absolute
    top: 0
    left: 0
    width: 24px
    height: 24px
    display: block
    background: white
    border-radius: 50%
    box-shadow: 0 2px 6px rgba(#9A9999,.75)
    transition: all .2s ease
    svg
      margin: 7px
      fill: none
      path
        stroke: #C8CCD4
        stroke-width: 2
        stroke-linecap: round
        stroke-linejoin: round
        stroke-dasharray: 24
        stroke-dashoffset: 0
        transition: all .5s linear
        

#cbx:checked + .toggle
  &:before
    background: #52D66B
  span
    transform: translateX(18px)
    path
      stroke: #52D66B
      stroke-dasharray: 25
      stroke-dashoffset: 25

.center
  position: absolute
  top: calc(50% - 12px)
  left: calc(50% - 21px)
              
            
!

JS

              
                
              
            
!
999px

Console