<div class="share-button">
  <a href="#" class="social-toggle">Share</a>
<div class="social-networks">
  <ul>
    <li class="social-twitter">
      <a href="https://www.twitter.com">T</a>
    </li>
    <li class="social-facebook">
    <a href="https://www.facebook.com">F</a>
    </li>
    <li class="social-gplus">
    <a href="http://www.gplus.com">G+</a>
    </li>
  </ul>
</div>
   </div>                                                                                              
html, body { 
  width: 100%;
  height: 100%;
  overflow: hidden;
  margin: 0; 
  padding: 0;
}
  
body {
  font-family:sans-serif;
  background:#333;
}

.share-button { 
  margin: auto;
  position: absolute; 
  top: 0; 
  left: 0;
  bottom: 0;
  right: 0;
  width:6em;
  height:2em;
  line-height:2em;
 }

.social-toggle {
  display:block;
  font-weight:bold;
  font-size:90%;
  text-align:center;
  text-transform:uppercase;
  transition:all 0.25s;
  color:rgb(200,200,200);
  background:rgba(200,200,200,.05);
  border: 2px solid rgb(200,200,200);
}

.social-toggle:hover {
  background:rgb(200,200,200);
  color:#333;
}

.no-js .social-toggle, .no-js .social-toggle:hover {
  cursor: default;
  border:none;
  background:transparent;
  color:rgb(200,200,200);
  pointer-events:none;
}

.social-networks {
  -webkit-transform-origin: 50% 0;
  -ms-transform-origin: 50% 0;
  transform-origin: 50% 0;
  -webkit-transform: scale(0) translateY(-190px);
  transform: scale(0) translateY(-190px);
  opacity: 0;
  -webkit-transition: all .4s ease;
  transition: all .4s ease;
  margin-left: -45%;
  /* stops flickering */
  -webkit-backface-visibility: hidden;
}

.social-gplus {
  background: #e34429;
}

.social-twitter {
  background: #6cdfea;
}

.social-networks.open-menu, .no-js .social-networks {
  -webkit-transform: scale(1) translateY(-90px);
  transform: scale(1) translateY(-90px);
  opacity:1;
}


.social-networks ul {
  position:relative;
  top:0;
  left:0;
  width: 180px;
  height: 40px;
  color: #fff;
  background: #3b5998;
  margin: auto;
  padding: 0;
  list-style: none;
}

.social-networks ul:after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  position: absolute;
  left: 0;
  right: 0;
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
}

.social-networks.open-menu ul:after, .no-js .social-networks ul:after {
  margin: 35px auto;
  border-top: 12px solid #3b5998;
}
  
.social-networks li {
  font-size: 90%;
  width: 60px;
  margin: 0;
  text-align: center;
  float: left;
  display: block;
  height: 40px;
  line-height:40px;
  position: relative;
  z-index: 2;
  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
  transition: all .3s ease;
}

.share-button a {
  text-decoration:none;
}

.social-networks a {
  display:block;
  color:white;
}

.social-networks a:hover {
  color:#222;
}


$('.social-toggle').on('click', function() {
  $(this).next().toggleClass('open-menu');
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js