Edit in JSFiddle

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">


<div class="wrapper">
  <ul>
    <li class="facebook"><i class="fa fa-facebook fa-2x" aria-hidden="true"></i></li>
    <li class="twitter"><i class="fa fa-twitter fa-2x" aria-hidden="true"></i></li>
    <li class="instagram"><i class="fa fa-instagram fa-2x" aria-hidden="true"></i></li>
    <li class="google"><i class="fa fa-google fa-2x" aria-hidden="true"></i></li>
    <li class="whatsapp"><i class="fa fa-whatsapp fa-2x" aria-hidden="true"></i></li>
  </ul>
</div>
* {
  margin: 0;
  padding: 0;
}


/* Let's style the wrapper in such away that, 
it should always be at the center of the browser */
.wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 550px;
}

/* Style the Un-order list by setting its list-style to none */
.wrapper ul {
  list-style: none;
}

/* Style the list items inside the UL list, by setting its width, height and line-height 
  and float them to left and set its border and border-radius.
 */
.wrapper ul li {
  width: 75px;
  height: 75px;
  line-height: 75px;
  margin: 0 10px;
  text-align: center;
  cursor: pointer;
  border-radius: 50%;
  border: 5px solid #D8E2DC;
  float: left;
  transition: all 0.5s ease;
}

/* Style the icons by setting its color and margin-top value to 20px 
to align it properly */
.wrapper ul li .fa {
  color: #D8E2DC;
  margin-top: 20px;
  transition: all 0.5s ease;
}

/* Now target the specific li classes for styling and use box-shadow effect to border and text-shadow effect
  to icons for glowing effect and use transition property for smooth transition effect. */
/*facebook*/
.wrapper ul li:hover.facebook {
  border: 5px solid #3b5998;
  box-shadow: 0 0 15px #3b5998;
  transition: all 0.5s ease;
}

.wrapper ul li:hover .fa-facebook {
  color: #3b5998;
  text-shadow: 0 0 15px #3b5998;
  transition: all 0.5s ease;
}

/*twitter*/
.wrapper ul li:hover.twitter {
  border: 5px solid #00aced;
  box-shadow: 0 0 15px #00aced;
  transition: all 0.5s ease;
}

.wrapper ul li:hover .fa-twitter {
  color: #00aced;
  text-shadow: 0 0 15px #00aced;
  transition: all 0.5s ease;
}

/* instagram */
.wrapper ul li:hover.instagram {
  border: 5px solid #bc2a8d;
  box-shadow: 0 0 15px #bc2a8d;
  transition: all 0.5s ease;
}

.wrapper ul li:hover .fa-instagram {
  color: #bc2a8d;
  text-shadow: 0 0 15px #bc2a8d;
  transition: all 0.5s ease;
}

/* google */
.wrapper ul li:hover.google {
  border: 5px solid #dd4b39;
  box-shadow: 0 0 15px #dd4b39;
  transition: all 0.5s ease;
}

.wrapper ul li:hover .fa-google {
  color: #dd4b39;
  text-shadow: 0 0 15px #dd4b39;
  transition: all 0.5s ease;
}

/* whatsapp */
.wrapper ul li:hover.whatsapp {
  border: 5px solid #4dc247;
  box-shadow: 0 0 15px #4dc247;
  transition: all 0.5s ease;
}

.wrapper ul li:hover .fa-whatsapp {
  color: #4dc247;
  text-shadow: 0 0 15px #4dc247;
  transition: all 0.5s ease;
}


/* media queries */

@media screen and (max-width: 640px){
  .wrapper {
      width: 350px;
  }
  .wrapper ul li{
      margin-top: 10px;
  }
  .wrapper ul li.google{
      margin-left: 60px;
  }
}


@media screen and (max-width: 340px){
  .wrapper {
      width: 150px;
  }
  .wrapper ul li{
      margin:15px;
  }
  .wrapper ul li.google{
      margin-left: 15px;
  }
}