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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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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


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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.

              label for='styledSelect1' class='custom-select'
  select#styledSelect1 name='options'
    option value='' Select an option
    option value='1' Option 1
    option value='2' Option 2
    option value='3' Option 3
    option value='4' Option 4
  position: relative
  display: block
  max-width: 400px
  min-width: 180px
  margin: 0 auto
  border: 1px solid #3C1C78
  background-color: #16013E
  z-index: 10
    border: none
    outline: none
    background: transparent
    -webkit-appearance: none
    -moz-appearance: none
    appearance: none
    border-radius: 0
    margin: 0
    display: block
    width: 100%
    padding: 12px 55px 15px 15px
    font-size: 14px
    color: #714BB9
    position: absolute
    right: 0
    top: 0
    width: 50px
    height: 100%
    line-height: 38px
    content: '\2228'
    text-align: center
    color: #714BB9
    font-size: 24px
    border-left: 1px solid #3C1C78
    z-index: -1
  margin-top: 80px
  background-color: #1A004A
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