<head>
   <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
</head>
<div id="wrapper">
  <input type="checkbox" class="checkbox" id="share" checked />
  <label for="share" class="label entypo-export"><i class="fa fa-share" aria-hidden="true"></i></label>
  <div class="social">
    <ul>
      <li class="entypo-twitter"><i class="fa fa-twitter" aria-hidden="true"></i></li>
      <li class="entypo-youtube"><i class="fa fa-youtube" aria-hidden="true"></i></li>
      <li class="entypo-facebook"><i class="fa fa-facebook" aria-hidden="true"></i></li>    
      <li class="entypo-gplus"><i class="fa fa-google-plus" aria-hidden="true"></i></li>
      <li class="entypo-instagram"><i class="fa fa-instagram" aria-hidden="true"></i></li>
      <li class="entypo-dropbox"><i class="fa fa-dropbox" aria-hidden="true"></i></li>
      <li class="entypo-github"><i class="fa fa-github" aria-hidden="true"></i></li>      
    </ul>
  </div>
  <p class="credits"><a href="https://colorlib.com/wp/free-html5-social-sharing-buttons-templates/" target="blank">Click here for more icon examples!</a></p>
</div>
html {
  margin:0;
  padding:50px 0;
  background: #161616;
}

#wrapper {
  text-align:center;
  position:absolute;
  left:0;
  right:0;
  margin: 100px auto;
  width:420px;
}

input[type="checkbox"]{display:none;}

.checkbox:checked + .label{
  background:#7B7484;
  color:#231733;
}

.checkbox:checked ~ .social {
  opacity:1;
  transform:scale(1) translateY(-90px);
}

.label {
  background:#231733;
  font-size:16px;
  cursor:pointer;
  margin:0;
  padding:5px 10px;
  border-radius:10%;
  color:#7B7484;
}

.social {
  transform-origin:50% 0%;
  transform:scale(0) translateY(-190px);
  opacity:0;
  transition:.5s;
}
ul {
  position:relative;
  left:0;
  right:0;
  margin:-5px auto 0;
  color:#fff;
  height:46px;
  width:420px;
  background:#3B5998;
  padding:0;
  list-style:none;
}

ul li {
  font-size:20px;
  cursor:pointer;
  width:60px;
  margin:0;
  padding:12px 0;
  text-align:center;
  float:left;
  display:block;
  height:22px;}

ul li:hover {color:rgba(0,0,0,.5);}

ul:after {
  content:'';
  display:block;
  position:absolute;
  left:0;
  right:0;
  margin:46px auto;
  height:0;
  width:0;
  border-left: 20px solid transparent;
	border-right: 20px solid transparent;
	border-top: 20px solid #E34429;
}

li[class*="twitter"] {background:#6CDFEA;padding:12px 0;}
li[class*="gplus"] {background:#E34429;padding:12px 0;}
li[class*="dropbox"] {background:#8DC5F2;padding:12px 0;}
li[class*="github"] {background:#9C7A5B;padding:12px 0;}
li[class*="instagram"] {background:#0E68CE;padding:12px 0;}
li[class*="youtube"] {background:#CC181E;padding:12px 0;}

.credits a {
  color: #fff;
  text-decoration: none;
}

External CSS

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External JavaScript

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