<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css" integrity="sha384-UHRtZLI+pbxtHCWp1t77Bi1L4ZtiqrqD80Kn4Z8NTSRyMA2Fd33n5dQ8lWUE00s/" crossorigin="anonymous">


<ul>
  <li>
    <a href="#">
      <i class="fab fa-edge"></i>
    </a>
  </li>
  <li>
    <a href="#">
      <i class="fab fa-firefox"></i>
    </a>
    </li>
  <li>
    <a href="#">
      <i class="fab fa-chrome"></i>
    </a>
    
  </li>
  <li>
    <a href="#">
      <i class="fab fa-opera"></i>
    </a> 
  </li>
</ul>

body {
  margin: 0;
  padding: 0;
  background: #262626;
}

ul {
  margin: 0;
  padding: 0;
  display: flex;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

ul li {
  list-style: none;
  margin: 0 15px;
}

ul li a {
  position: relative; 
  display: block;
  width: 60px;
  height: 60px;
  text-align: center;
  line-height: 63px;
  background: #333;
  border-radius: 50%;
  font-size: 30px;
  color: #666;
  transition: .5s;
}

ul li a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #ffee10;
  transition: .5s;
  transform: scale(.9);
  z-index: -1;
}

ul li a:hover::before {
  transform: scale(1.1);
  box-shadow: 0 0 15px #ffee10;
}

ul li a:hover {
  color: #ffee10;
  box-shadow: 0 0 5px #ffee10;
  text-shadow: 0 0 5px #ffee10;
}