.em-social-media-channels a {
  display: inline-block;
  width: 40px;
  height: 40px;
  background: #000;
  border-radius: 0;
  color: #FFF;
  font-size: 18px;
  position: relative;
}
.em-social-media-channels a:hover {
  background: rgba(0, 0, 0, 0.6);
  color: #000;
}
.em-social-media-channels a i {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}