#follow_us {
  background-color: white;
  padding-top: 40px;
}

#follow_us ul h1 {
  padding-bottom: 10px;
}

#follow_us ul li a {
  margin-left: 5px;
  margin-right: 5px;
  background-repeat: no-repeat;
  background-position: center;
  overflow: hidden;
}

#follow_us {
  background-color: black;
}

#follow_us ul li a img {
  width: 48px;
  transition: all 0.3s ease;
}
#follow_us ul li a img:hover {
  filter: invert(1);
}