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 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

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

              
                <main>
  	<aside class="side1">Side1</aside>
  	<section class="page_main">
		Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer ex felis, consequat id posuere nec, consectetur nec nisi. Ut ornare velit mattis, convallis lectus eu, porttitor augue. Nullam sit amet pulvinar turpis. Donec non dolor eleifend tellus scelerisque convallis aliquam et magna. Praesent ac felis justo. Cras tellus leo, imperdiet at sem vitae, rutrum auctor nibh. Sed congue ipsum sit amet urna finibus, non condimentum lorem facilisis. Nullam dictum semper diam sit amet rutrum. Nullam dignissim laoreet commodo.
	  </section>
</main>
              
            
!

CSS

              
                body {
	font-family: sans-serif;
}
main {
	display: flex;
	flex-flow: row;
}
.side1 {
	flex: 0 0 200px;
	margin-right: 16px;
	border-radius: 6px;
	padding: 20px;
	background-color: #ddd;
}
.page_main {
	flex: 1 1 600px;
	border-radius: 6px;
	padding: 20px;
	background-color: #ddd;
}
              
            
!

JS

              
                
              
            
!
999px

Console