body{float:left;width:100%;margin:0}
#whatsapp{float:left;height:60px;width:60px;border-radius:50%;background:#2ecc71;outline:none;cursor:pointer;transition:all ease-in-out 0.5s}
#whatsapp:hover{background:#27AD61}
#whatsapp a{float:left;width:100%;height:100%;line-height:60px !important;text-align:center}
#whatsapp img{margin-top:50%;transform:translateY(-50%)}