.whatsapp_link{width: 70px; float: left;background: #25d366;color: white;position: fixed;bottom: 20px;left: 20px;border-radius: 50%;animation-name: pulse;animation-duration: 1.5s;animation-timing-function: ease-out;animation-iteration-count: infinite;z-index:10000;}
@keyframes pulse {
0% {box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);}
80% {box-shadow: 0 0 0 14px rgba(37, 211, 102, 0);}
}