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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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About the <head>

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Insecure Resource

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CSS

About CSS Preprocessors

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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About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

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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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Packages

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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 

              
                <ul class="share"> 
  <!--Facebook-->
  <li>
      <div class="social-link">  
          <div class="nav-label">
              <span>Share Button</span>
          </div>
      </div>
  </li>
  <!--Twitter-->
  <li>
      <div class="social-link">  
          <div class="nav-label">
              <span>Share Button</span>
          </div>
      </div>
  </li> 
</ul>
!

CSS 

              
                * {
  box-sizing: border-box;
}

body {
  background: #224466;
}

.share {
  position: absolute;
  left: 0;
  top: 50%;
  list-style-type: none;
  margin: 0;
  padding: 0;
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
}

.share li {
  position: relative;
}

.share li:nth-of-type(1) .social-link,
.share li:nth-of-type(1) .social-link:hover {
  background: #3B5998 url("https://i.imgur.com/u9gLigk.png") 50% 50% no-repeat;
  background-size: 25px auto;
}

.share li:nth-of-type(1) .nav-label {
  -moz-transition: background 0.4s ease, -moz-transform 0.4s ease 0.1s;
  -o-transition: background 0.4s ease, -o-transform 0.4s ease 0.1s;
  -webkit-transition: background 0.4s ease, -webkit-transform 0.4s ease;
  -webkit-transition-delay: 0s, 0.1s;
  transition: background 0.4s ease, transform 0.4s ease 0.1s;
  background: #1e2e4f;
}

.share li:nth-of-type(1) .social-link:hover .nav-label {
  -moz-transition: -moz-transform 0.4s ease, background 0.4s ease 0.1s;
  -o-transition: -o-transform 0.4s ease, background 0.4s ease 0.1s;
  -webkit-transition: -webkit-transform 0.4s ease, background 0.4s ease;
  -webkit-transition-delay: 0s, 0.1s;
  transition: transform 0.4s ease, background 0.4s ease 0.1s;
  background: #3B5998;
}

.share li:nth-of-type(2) .social-link,
.share li:nth-of-type(2) .social-link:hover {
  background: #4099FF url("https://i.imgur.com/QzPDsIB.png") 50% 50% no-repeat;
  background-size: 25px auto;
}

.share li:nth-of-type(2) .nav-label {
  -moz-transition: background 0.4s ease, -moz-transform 0.4s ease 0.1s;
  -o-transition: background 0.4s ease, -o-transform 0.4s ease 0.1s;
  -webkit-transition: background 0.4s ease, -webkit-transform 0.4s ease;
  -webkit-transition-delay: 0s, 0.1s;
  transition: background 0.4s ease, transform 0.4s ease 0.1s;
  background: #0065d9;
}

.share li:nth-of-type(2) .social-link:hover .nav-label {
  -moz-transition: -moz-transform 0.4s ease, background 0.4s ease 0.1s;
  -o-transition: -o-transform 0.4s ease, background 0.4s ease 0.1s;
  -webkit-transition: -webkit-transform 0.4s ease, background 0.4s ease;
  -webkit-transition-delay: 0s, 0.1s;
  transition: transform 0.4s ease, background 0.4s ease 0.1s;
  background: #4099FF;
}

.share li .social-link {
  padding: 0;
  display: block;
  cursor: pointer;
  width: 60px;
  height: 60px;
  padding: 15px 20px;
}

.share li .social-link .nav-label {
  font-family: sans-serif;
  font-size: 14px;
  color: white;
  display: block;
  height: 60px;
  position: absolute;
  top: 0px;
  top: 0rem;
  margin-left: 40px;
  line-height: 64px;
  padding: 0 20px;
  white-space: nowrap;
  z-index: 4;
  -moz-transition: -moz-transform 0.4s ease;
  -o-transition: -o-transform 0.4s ease;
  -webkit-transition: -webkit-transform 0.4s ease;
  transition: transform 0.4s ease;
  -moz-transform-origin: left 50%;
  -ms-transform-origin: left 50%;
  -webkit-transform-origin: left 50%;
  transform-origin: left 50%;
  -moz-transform: rotateY(-90deg);
  -webkit-transform: rotateY(-90deg);
  transform: rotateY(-90deg);
}

.share li .social-link .nav-label span {
  -moz-transform-origin: left 50%;
  -ms-transform-origin: left 50%;
  -webkit-transform-origin: left 50%;
  transform-origin: left 50%;
  -moz-transform: rotateY(-90deg);
  -webkit-transform: rotateY(-90deg);
  transform: rotateY(-90deg);
}

.share li .social-link:hover .nav-label,
.share li .social-link:hover .nav-label span {
  -moz-transform: rotateY(0);
  -webkit-transform: rotateY(0);
  transform: rotateY(0);
}
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