cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

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.

Quick-add: + add another resource

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.

Quick-add: + add another resource

Code Indentation

     

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.

            
              <style id="inverter" media="none">
  html { background-color: #eee; filter: invert(100%) }
  * { background-color: inherit }
  img:not([src*=".svg"]), [style*="url("] { filter: invert(100%) }
</style>
<div class="wrap">
  <label class="button">
    <input type="checkbox" id="themer">
    Dark theme: <span aria-hidden="true"></span>
  </label>
  <h1>Lorem ipsum</h1>

  <p>Vestibulum sit amet ipsum lacus. Aliquam nisl enim&hellip; tristique tempus placerat at, posuere in lectus. Suspendisse potenti cras molestie, risus a enim convallis vitae luctus libero lacinia. Nulla vel magna sit amet dui <a href='#'>lobortis</a> commodo vitae vel nulla. Nunc iaculis risus vel orci ornare dignissim sed vitae nulla. Aliquam tincidunt velit sit amet <a href='#'>ante hendrerit</a> tempus. Sed dapibus, lectus sit amet adipiscing egestas, mauris est viverra nibh, iaculis pretium sem orci aliquet mauris. </p>
  <div class="box">
  <p>Nunc iaculis risus vel orci ornare dignissim sed vitae nulla. Vestibulum sit amet ipsum lacus… Suspendisse potenti. Nulla auctor eleifend 23rd of May turpis consequat pharetra.</p>
  </div>
  <p>Sed dapibus, lectus sit amet adipiscing egestas, mauris est viverra nibh, <a href='#'>iaculis pretium</a> sem orci aliquet mauris. Maecenas sit <em>amet tellus</em> nec mi gravida posuere non <a href='#'>pretium magna</a>. Curabitur consectetur; faucibus nisl ac varius. Sed dapibus, lectus sit amet adipiscing egestas, mauris est viverra nibh, iaculis pretium sem orci aliquet mauris. Nulla lobortis tempus commodo. </p>
  <h2>Curabitur consectetur</h2>
  <p>Nulla lobortis tempus commodo? Suspendisse potenti. Sed dapibus, lectus sit amet adipiscing egestas, mauris est viverra nibh (iaculis pretium sem orci aliquet mauris). Suspendisse potenti H<sub>2</sub>0. </p>
  <ul>
    <li>Sed dapibus, lectus sit amet adipiscing egestas</li>
    <li>Sed dapibus, lectus sit amet adipiscing egestas</li>
    <li>Vestibulum sit amet ipsum lacus</li>
  </ul>
  <p>Donec tempus tempus tellus, ac lacinia turpis mattis ac! Cras molestie risus a enim convallis vitae luctus libero lacinia. Donec et nisi dictum <a href='#'>felis sollicitudin</a> congue. Cras molestie risus a <q cite='http://www.heydonworks.com'>enim convallis vitae</q> luctus libero lacinia. Fusce ac sodales magna &hellip; Suspendisse potenti. Vestibulum sit amet ipsum lacus&hellip; Suspendisse <em>potenti</em>. Nunc iaculis risus vel &#8216;Orci Ornare&#8217; dignissim sed vitae nulla. </p>
  <h2>Purus lectus venenatis urna</h2>
  <p>Cras molestie risus a <q cite='http://www.heydonworks.com'>enim convallis vitae</q> luctus libero lacinia. Donec tempus tempus tellus, ac lacinia turpis mattis ac. Duis sagittis, est sit amet gravida tristique, purus lectus venenatis urna, id &#8216;molestie&#8217; magna risus ut nunc. Nulla auctor eleifend 23<sup>rd</sup> of May turpis consequat pharetra. Nulla auctor eleifend turpis consequat pharetra: </p>
  <img src="http://talesandtails.com/wp-content/uploads/2013/01/Greyhound-Soul-copy-800x491.jpg" alt="greyhound laying down">
  <p>Duis sagittis, est sit amet gravida tristique, purus lectus venenatis urna, id molestie magna risus ut nunc. Lorem ipsum dolor sit amet, &mdash; consectetur adipiscing &mdash; elit. Nunc iaculis risus vel orci ornare dignissim sed vitae nulla. Vestibulum sit amet ipsum lacus&hellip; Suspendisse potenti. Nulla auctor eleifend 23<sup>rd</sup> of May turpis consequat pharetra. </p>
  <p>Nulla lobortis tempus commodo? Nulla lobortis tempus <strong>commodo</strong>. Fusce ac sodales <code>.generate()</code> magna. Donec tempus tempus tellus, ac lacinia turpis mattis ac. Maecenas sit <q cite='http://www.heydonworks.com'>amet tellus nec mi gravida posuere</q> non pretium magna. Nunc iaculis risus vel orci ornare dignissim sed vitae nulla. Nulla vel magna sit &mdash; amet dui lobortis commodo &mdash; vitae vel nulla. </p>
  <img src="https://www.gnu.org/graphics/official%20gnu.svg" alt="GNU official logo in SVG">
</div>

            
          
!
            
              html {
  font-family: sans-serif;
  line-height: 1.5;
  color: #222;
  height: 100%;
}

.wrap {
  margin: 0;
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem;
}

* {
  margin: 0;
  color: inherit; 
}

* + *:not(li):not(body) {
  margin-top: 1.5rem;
}

img {
  max-width: 100%;
  height: auto;
}
  
.box {
  padding: 1.5rem;
  border: 2px solid;
  background-color: #ccc;
}

.button {
  background: #000;
  padding: 0.5rem 1.5rem;
  color: #fff;
  border-radius: 0.25rem;
}

.button [type="checkbox"] {
  position: absolute;
  left: -9999px;
}

.button [type="checkbox"] + span::before {
  content: 'off';
}

.button [type="checkbox"]:checked + span::before {
  content: 'on';
}
            
          
!
            
              var checkbox = document.getElementById('themer');
var invertor = document.getElementById('inverter');

checkbox.addEventListener('change', function () {
  // Triggers repaint in most browsers:
  invertor.setAttribute('media', this.checked ? 'screen' : 'none');
  // Forces repaint in Chrome:
  invertor.textContent = invertor.textContent.trim();
});
            
          
!
999px
Loading ..................

Console