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.

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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

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.

HTML

              
                .text Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint ut est quis odit officiis eveniet numquam eos, beatae aspernatur ab repellat, nam corrupti tempore, impedit. Harum inventore iure, molestiae accusantium.
              
            
!

CSS

              
                body
	font-size 16px
	line-height 1.6
	padding 30px

.text
	position relative
	padding .5em 1em
	width 400px
	margin 0 auto

	&:before
	&:after
		content ''
		position absolute
		border solid red
		width 40px
		height @width
		pointer-events none

	&:before
		top 0
		left 0
		border-width 3px 0 0 3px

	&:after
		bottom 0
		right 0
		border-width 0 3px 3px 0
              
            
!

JS

              
                
              
            
!
999px

Console