.float-whatsapp {
    color: white;
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    -o-transform: scale(1);
    transform: scale(1);
    opacity: 1;
    visibility: visible;

    left: 20px;
    font-size: 26px;
    position: fixed;
    z-index: 1600;
    bottom: 20px;
    -webkit-background-size: 200% auto;
    background-size: 200% auto;
    background-image: -webkit-gradient(linear, left top, right top, from(#3BAF42), color-stop(51%, #7FC268), to(#3BAF42));
    background-image: -webkit-linear-gradient(left, #3BAF42 0%, #7FC268 51%, #3BAF42 100%);
    background-image: -moz-linear-gradient(left, #3BAF42 0%, #7FC268 51%, #3BAF42 100%);
    background-image: -o-linear-gradient(left, #3BAF42 0%, #7FC268 51%, #3BAF42 100%);
    background-image: linear-gradient(to right, #3BAF42 0%, #7FC268 51%, #3BAF42 100%);
    /* -webkit-transform: scale(0);
    -ms-transform: scale(0);
    -o-transform: scale(0);
    transform: scale(0); */
    height: 60px;
    width: 60px;
    text-align: center;
    line-height: 60px;
    -webkit-border-radius: 50%;
    border-radius: 50%;
    transition: all ease 0.5s;
}
.float-whatsapp:hover {
    background-position: right center;
    -webkit-transform: scale(1.1);
    -ms-transform: scale(1.1);
    -o-transform: scale(1.1);
    transform: scale(1.1);
}
.float-whatsapp  i{
    color: white;
}