Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

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.

Details

Privacy

Go PRO Window blinds lowered to protect code. Code Editor with window blinds (raised) and a light blub turned on.

Keep it secret; keep it safe.

Private Pens are hidden everywhere on CodePen, except to you. You can still share them and other people can see them, they just can't find them through searching or browsing.

Upgrade to PRO

Behavior

Auto Save

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.

Template

Make Template?

Templates are Pens that can be used to start other Pens quickly from the create menu. The new Pen will copy all the code and settings from the template and make a new Pen (that is not a fork). You can view all of your templates, or learn more in the documentation.

Template URL

Any Pen can act as a template (even if you don't flip the toggle above) with a special URL you can use yourself or share with others. Here's this Pen's template URL:

Screenshot

Screenshot or Custom Thumbnail

Screenshots of Pens are shown in mobile browsers, RSS feeds, to users who chose images instead of iframes, and in social media sharing.

This Pen is using the default Screenshot, generated by CodePen. Upgrade to PRO to upload your own thumbnail that will be displayed on previews of this pen throughout the site and when sharing to social media.

Upgrade to PRO

HTML

              
                <body>
  <a href="#" id="toggleDiv">SHOW NEXT</a>
  <div class="wrapper">
  <!-- Add the active class to the one you want visible when loaded 
       Didn't change anything else in the HTML -->
  <div class="first active">
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec porta aliquet enim, nec convallis justo ultrices a. Sed eu ex vitae leo tempor elementum dignissim at diam. Morbi fermentum feugiat orci in dapibus. Aenean dictum consequat feugiat. Nullam diam purus, varius vitae finibus ac, condimentum eu quam. In aliquam aliquam vehicula. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Proin efficitur vulputate sem, sit amet efficitur ex iaculis ut. Morbi eget malesuada magna.

Duis vel rutrum turpis. Cras id tellus in dolor finibus tempus. Curabitur finibus libero nulla, ut malesuada nisi convallis at. Curabitur porttitor tellus eu nisl mollis, vel sodales lacus bibendum. Morbi quis libero vel quam sodales sollicitudin et ac ante. Donec eros nisi, tincidunt non dolor quis, accumsan sodales ex. Praesent vitae volutpat magna. Sed semper mi vel justo imperdiet, eget molestie metus bibendum. Ut vulputate posuere quam, id condimentum elit tempor non. Quisque bibendum euismod ultrices. Proin ultricies diam non purus volutpat congue. Vestibulum condimentum rhoncus purus sed posuere. Quisque accumsan sodales nibh, egestas fermentum metus vehicula id.

Aliquam elementum dignissim felis ut congue. Nunc consequat enim ut lectus pellentesque vestibulum. Integer gravida blandit diam, non bibendum velit gravida quis. Proin vulputate tortor a odio efficitur tempor. Morbi pharetra nulla a magna luctus fringilla. Etiam eros leo, tristique sit amet vehicula id, sollicitudin id velit. Donec at nunc sit amet orci interdum tincidunt. Cras posuere, sapien quis blandit rutrum, nisl purus venenatis arcu, sed vestibulum nisl ante sit amet felis.</p>
  </div> 
  <div class="second">
    <p>
     Aenean vel quam et leo faucibus convallis ac sit amet neque. Sed porta, justo non eleifend molestie, libero ligula sagittis urna, vitae sodales erat lectus ac dolor. Vivamus maximus luctus arcu, eget aliquam dui auctor in. Integer sit amet sem quam. Cras sagittis vehicula eros, vitae placerat velit pretium ac. Morbi in nisi magna. Nullam cursus odio massa, a porttitor felis fringilla ac. Morbi faucibus massa nulla, eget vehicula nunc commodo ut. Praesent semper ex sed velit mattis porta a at quam. Morbi nec eros vitae elit efficitur faucibus. Fusce tincidunt odio risus, a ullamcorper ligula efficitur eget.

Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Etiam sed dictum elit. In accumsan consectetur lectus, quis condimentum eros euismod vel. Proin vel consequat quam. Donec vitae vestibulum sem. Praesent vestibulum arcu eu placerat accumsan. Morbi ultricies risus ex, quis porttitor tellus tempus ut. In vitae efficitur sem. Sed dapibus ante sed ligula consequat, a vestibulum nibh interdum. Praesent vel vulputate dui, id convallis neque.
    </p>
  </div> 
</div>

</body>
              
            
!

CSS

              
                .first, .second {
  position: absolute;
  top:0;
  /* Set default display to none */
  display: none;
}
/* Div with active class to set display to block */
.active {
  display: block;
}

/* Didn't change anything else below */
.first {
  background: red;
  width: 660px;
}

.second {
  background: green;
  width:500px;
}

a {
 padding:10px 10px; 
 background: black;
}

.wrapper {
 position: relative;
}
              
            
!

JS

              
                var panels = $('.wrapper div');

// If a div has the active class it removes it, 
// if it doesn't then it adds it
$('#toggleDiv').on('click', function() {
  panels.toggleClass('active');
});

// Keep in mind this way only works when toggling the class
// between two elements
              
            
!
999px
Keep the <main> thing the <main> thing.

Console