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

              
                :ruby
  text = '
    So here we are again — back with more placeholder text for another example.
    You’re sticking around to read it, too.
    Fascinating.
    We’re paused for a moment here, reading and learning together.
    Relaxing, isn’t&nbsp;it?
  '
  text2 = '
    Now we’re on the second paragraph.
    Feel free to stop reading and look at the indentation.
    That’s why we’re both here after&nbsp;all.
  '

.mhc.mw3
  .mb1l.mw05
    %p= text
    %p.ti05= text2

  .mb1l.mw1
    %p= text
    %p.ti1= text2

  .mb1l.mw2
    %p= text
    %p.ti2= text2

  .mhc.mw3
    %p= text
    %p.ti3= text2
              
            
!

CSS

              
                @import url('https://fonts.googleapis.com/css?family=Source+Serif+Pro:400')

html
  background: #f7f7f6
  font-family: 'Source Serif Pro', serif
  font-size: 17px
  line-height: 1.35
  padding: 37.5px

.mhc
  margin-left: auto
  margin-right: auto

.mw05
  max-width: 460 / 19 * 1em
.mw1
  max-width: 620 / 19 * 1em
.mw2
  max-width: 750 / 19 * 1em
.mw3
  max-width: 900 / 19 * 1em

p
  margin: 0

  + p

    &.ti05
      text-indent: 0.5em
    &.ti1
      text-indent: 1em
    &.ti2
      text-indent: 2em
    &.ti3
      text-indent: 3em

.mb1l
  margin-bottom: 17px * 1.35
              
            
!

JS

              
                
              
            
!
999px

Console