@import url(https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.css);

:root {
  --timing: 100ms;
  --iconColor: #00b4f531;
  --accent: #4b15a3;
}

.social-icons{
  padding:0;
  list-style:none;
  margin:1em;
  text-align:center;
}

.social-icons li {
  display: inline-block;
  margin: 0.25em;
  position: relative;
  font-size: 1.2em;
}

.social-icons i {
  color: #fff;
  position: absolute;
  top: 21px;
  left: 21px;
  transition: all var(--timing) ease-out;
}

.social-icons a {
  display: inline-block;
  position: relative;
}

.social-icons a::before {
  content: " ";
  width: 60px;
  height: 60px;
  border-radius: 100%;
  display: block;
  background: linear-gradient(45deg, var(--iconColor), var(--accent));
  transition: all 165ms ease-out;
  transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
}

.social-icons a:hover::before {
  transform: scale(0);
  -ms-transform: scale(0);
  -webkit-transform: scale(0);
  transition: all var(--timing) ease-in;
}

.social-icons a:hover i {
  transform: scale(2.2);
  -ms-transform: scale(2.2);
  -webkit-transform: scale(2.2);
  color: var(--iconColor);
  background: -webkit-linear-gradient(45deg, var(--iconColor), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: all 165ms ease-in;
}