#chat-whatsapp{position: fixed;bottom: 15px;right:20px !important;text-align: center;border-radius: 50%;background-color: #2aae1d;transition:all .3s ease-in-out;z-index:99999999999;border:1px solid #2aae1d;}

#chat-whatsapp a{display:block;font-size: 30px;color:#FFF;padding:10px 12px;}

#chat-whatsapp:hover{background:#FFF;color:#2aae1d !important;box-shadow: 1px 2px 10px #AAA;}
#chat-whatsapp:hover i{color:#2aae1d}
#chat-whatsapp a:hover{color:#2aae1d}