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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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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.

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HTML 

              
                <h1>3D dropdown menu</h1>
<h3><a href="https://bit.ly/14XAO0z" target="_blank">Inspiration</a></h3>
<div class="menu">
  <span>Hover me for drop</span>
  <ul>
    <li>First drop</li>
    <li>Second drop</li>
    <li>Third drop</li>
    <li>Fourth drop</li>
  </ul>
</div>
!

CSS 

              
                @import "compass/css3";

// As many dropdowns as you have, can be set beyond with no problems
$dropdowns: 4;
// Animation speed
$speed: .3;
// Don't mess with the two below
$delayCount: 0;
$delayCountReverse: $dropdowns*$speed;

* {
  @include box-sizing(border-box);
  margin: 0;
  padding: 0;
}

a {
  color: #3498db;
  text-decoration: none;
}

.menu {
  @include perspective(1000);
  width: 150px;
  margin: 20px auto;
}

h1, h3 {
  font-family: georgia;
  font-weight: 200;
  text-align: center;
  margin-top: 100px;
  font-size: 50px;
}

h3 {
  margin: 5px;
  font-size: 20px; 
}

ul {
  list-style: none;
}

.menu ul li, .menu span {
  display: block;
  width: 150px;
  height: 40px;
  padding: 10px 5px;
  background-color: #1abc9c;
  color: #fff;
  border-bottom: 1px solid #00A686;
  font-family: tahoma;
  cursor: pointer;
}

.menu span {
  background-color: #16a085;
  border: none;
  text-align: center;
  @include border-radius(2px);
  @include transition(border-radius, .5s);
}

.menu:hover span {
  @include border-radius(2px 2px 0 0);
}

.menu ul li {
  @include transform-origin(top, center, 0px);
  @include transform(rotateX(-90deg));
  @include opacity(0);
}

.menu ul li:last-of-type {
  border: none;
  @include border-radius(0 0 2px 2px);
}

.menu:hover ul li {
  @include transform(rotateX(0deg));
  @include opacity(1);
}

.menu ul li:hover {
  background-color: #34495e; 
}

@for $i from 1 through $dropdowns {
  $delayCount: $delayCount+$speed;
  $delayCountReverse: $delayCountReverse - $speed;
  .menu:hover ul li:nth-of-type(#{$i}) {
     @include transition(transform $speed+s $delayCount+s, opacity 0s $delayCount+s);
  }
  .menu ul li:nth-of-type(#{$i}) {
     @include transition(transform $speed+s $delayCountReverse+s, opacity 0s $delayCountReverse+$speed+s);
  }
}
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JS
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999px

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