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 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.

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

              
                <section>
  <h1>
    Day / Night Mode Switch Toggle Using Html CSS and Javascript
  </h1> 
  <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Qui accusamus quibusdam a, nesciunt inventore, suscipit praesentium rem ut, dolores impedit dolorum ipsum. Quo odio delectus, cumque pariatur aliquid quis aliquam officia, quos optio eaque amet tenetur possimus minima ratione vel!</p>
  <p>Ullam obcaecati eius illum ducimus illo temporibus excepturi numquam, necessitatibus fuga quaerat doloribus consequuntur dolorem suscipit est aliquam! Deserunt amet cum non animi expedita iusto minus iste quaerat exercitationem dignissimos! Similique, blanditiis adipisci quisquam assumenda nam suscipit veniam debitis provident? Ullam obcaecati eius illum ducimus illo temporibus excepturi numquam, necessitatibus fuga quaerat doloribus consequuntur dolorem suscipit est aliquam! Deserunt amet cum non animi expedita iusto minus iste quaerat exercitationem dignissimos! Similique, blanditiis adipisci quisquam assumenda nam suscipit veniam debitis provident?</p>
  <p>Porro ea voluptatibus commodi hic voluptas quae nesciunt ullam! Officia in, facilis tenetur incidunt omnis obcaecati. Sequi, fugiat? Est, architecto nesciunt obcaecati fugiat impedit odit non nobis. Perferendis sed, veritatis labore voluptatibus, possimus, assumenda obcaecati eaque distinctio a libero maxime.</p>
  <p>Ipsum recusandae tempore adipisci cum, illum placeat eligendi eveniet accusamus in delectus nam, consequatur rem, sapiente dolor incidunt velit voluptas quibusdam laudantium nostrum nemo nobis libero deleniti. Quos ipsa tempore saepe. Praesentium aliquid perferendis maxime deserunt aspernatur fugiat nihil alias. Ullam obcaecati eius illum ducimus illo temporibus excepturi numquam, necessitatibus fuga quaerat doloribus consequuntur dolorem suscipit est aliquam! Deserunt amet cum non animi expedita iusto minus iste quaerat exercitationem dignissimos! Similique, blanditiis adipisci quisquam assumenda nam suscipit veniam debitis provident?</p>
</section>
<ul>
  <li>
    <span>Dark</span>
    <span>Light</span> 
  </li>
</ul>
              
            
!

CSS

              
                @import url('https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300|Raleway&display=swap');
body{
  font-family: 'Raleway', sans-serif;
  margin:0;
  padding:0;
}

section
{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  box-sizing: border-box;
  padding: 100px;
  transition: all 0.8s;
}
section.dark
{
  background-color: #444857;
  color: #fff;
  background: -webkit-linear-gradient(to bottom, #434343, #444857);
  background: linear-gradient(to bottom, #434343, #444857);
  transition: all 0.8s;
}
section p{
  font-family: 'Open Sans Condensed', sans-serif;
  line-height: 32px;
  text-align: justify;
}
ul{
  position: absolute;
  top: 20px;
  right: 20px;
  margin: 0;
  padding: 0;
  width: 100px;
  height: 30px;
  z-index: 1;
  border: 1px solid #000;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.8s;
}
ul.active{
  border-color: #fff;
  transition: all 0.8s;
}
ul li{
  list-style: none;
  width: 100%;
  height: 60px;
  text-align: center;
  text-transform: uppercase;
  transition: 0.5s;
}
ul.active li{
  transform: translateY(-30px);
}
ul li span
{
  color: #fff;
  display: block;
  width: 100%;
  height: 30px;
  line-height: 30px;
}
ul li span:nth-child(1)
{
  background-color: #2d303a;
  color: #fff;
}
              
            
!

JS

              
                $(document).ready(function(){
  $('ul').click(function(){
    $('ul').toggleClass('active');
    $('section').toggleClass('dark');
  });
})
              
            
!
999px

Console