#main_banner{position: fixed; top: 50%; transform: translateY(-50%); right: 52px; z-index: 20;}
#main_banner .link_list_ li{margin-bottom: 21px;}
#main_banner .link_list_ li:last-child{margin-bottom: 0;}
#main_banner .link_list_ li a{box-shadow: 0 0 9px 1px rgba(0, 0, 0, 0.2); display: block; border-radius: 50%;}
#main_banner .link_list_ li:hover a{animation: linkani 0.5s infinite alternate;}
@keyframes linkani {
  0% {transform: translateY(0);}
  100% {transform: translateY(10px);}
}

@media screen and (max-width: 1800px) {
    #main_banner{right: 20px; }
    #main_banner .link_list_ li{margin-bottom: 15px;}


}
@media screen and (max-width: 1400px) {
    #main_banner .link_list_ li{margin-top: 10px}
    #main_banner .link_list_ li a{width: 45px;}
}
@media screen and (max-width: 1024px) {
    #main_banner{display: none;}
}