body {
  margin: 0;
  padding: 0;
  background-color: #252525;
}

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

ul li {
  list-style: none;
}

ul li a {
  position: relative;
  width: 60px;
  height: 60px;
  display: block;
  text-align: center;
  margin: 0 10px;
  border-radius: 50%;
  padding: 6px;
  box-sizing: border-box;
  text-decoration: none;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.3);
  background: linear-gradient(0deg, #dddddd, #ffffff);
  transition: 0.5s;
}

ul li a:hover {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

ul li a .fa {
  width: 100%;
  height: 100%;
  display: block;
  background: linear-gradient(0deg, #ffffff, #dddddd);
  border-radius: 50%;
  line-height: 50px;
  font-size: 24px;
  color: #262626;
  transition: 0.5s;
}

ul li:nth-child(1) a:hover .fa {
  color: #3b71e5;
}
ul li:nth-child(2) a:hover .fa {
  color: #00aced;
}
ul li:nth-child(3) a:hover .fa {
  color: #f32105;
}
ul li:nth-child(4) a:hover .fa {
  color: #007bb6;
}
ul li:nth-child(5) a:hover .fa {
  color: #f511ad;
}