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.

+ add another resource


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


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.


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.


                <div class="container">
  <div class="header">
    <h1>CSS Variables</h1>
  <div class="row">
  <div class="content section1">
    <h2>Global Variables</h2>
    <p>Global variables can be set with the :root var at the top level. You can set most attributes, colors, line-heights, whatever properties you want. You set the name of the variable with two dashes and then apply the property value, as follows:</p>
    <blockquote>Ex. --red: #ff6f69;</blockquote>
  <div class="content section2">
    <p>To apply a variable to an element, you use the var object and call on the variable:</p>
    <blockquote>Ex. color: var(--red);</blockquote>
  <div class="content section3">
    <p>Changing a global variable changes wherever it's applied in the design. Local variables are protected by their scope. 


                .row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
/* Global Variables */
:root {
  --purple: #cc69a7;
  --white: #ffffff;
  --beige: #fbc88d;
  --light-yellow: #ffdfa2;
  --light-pink: #d2a8b3;
  --font-spec: Arial, Helvetica, sans-serif;
  --lspacing: .5px;
  --tshadow: 2px 2px 5px rgba(0,0,0,.6);
  --lheight: 1.4;
.header {
  background-color: var(--purple);
  padding: 6em 4em;
  color: var(--white);
h2 {
  font-size: 22px; 
  font-weight: bold;
  padding-bottom: .6em;
  letter-spacing: var(--lspacing);
  color: var(--white);
  text-shadow: var(--tshadow);
.header h1 {
  font-size: 50px;
  letter-spacing: .5px;
  text-shadow: var(--tshadow);
.content {
  padding: 3em 4em;
.section1 {
  background-color: var(--beige);
.section2 {
  background-color: var(--light-yellow);
.section3 {
  background-color: var(--light-pink);
blockquote {
  font-weight: bold;
  padding: 2em;
body {
  font-family: var(--font-spec);
  line-height: var(--lheight);