#social {
  position: fixed;
  left: 0px;
  top: 190px;
  width: 46px;
  height: 400px;
  z-index: 999;
}

#social .social_item:hover {
  background-repeat: no-repeat;
  background-position: 0px top;
  transition-duration: 0.6s;
  opacity: 1;
}



#social .social_item a:hover {
  background-repeat: no-repeat;
  background-position: 0px top;
  transition-duration: 0.6s;
  background-color: #000;
  color: #fff;
}

@media (max-width: 1020px) {
  #social {
    display: none;
  }
}