footer ul.social li a img{border-radius:50%;display:inline-block;height:30px;transition:background-color .3s ease;width:30px}ul.social{display:flex;justify-content:flex-end;list-style:none;margin:0;padding:0}ul.social li{margin:0 4px}ul.social li a{border-radius:50%;display:inline-block;height:30px;text-align:center;transition:background-color .3s ease;width:30px}ul.social li a img{border-radius:50%;height:100%;width:100%}ul.social li a:hover{opacity:.7}