.float{
    position:fixed;
    width:60px;
    height:60px;
    bottom: 15px;
    right:80px;
    background-color:#25d366;
    color:#FFF;
    border-radius:50px;
    text-align:center;
  font-size:30px;
    box-shadow: 2px 2px 3px #999;
  z-index:100;
}
.float:hover {
    text-decoration: none;
    color: #FFF;
  background-color:#1ab152;
    
    animation: shake 1s;

 
  animation-iteration-count: infinite;
}

.my-float{
    margin-top:16px;
}

.pulse {
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% {
        box-shadow: 0 0 0 0px; #25d3664d; rgba(0, 0 , 0 , 0.2);
    }
    100% {
        box-shadow: 0 0 0 20px rgba(0, 0, 0, 0);
    }
}