.btn-whatsapp {
        margin-left: 20px;
        padding-bottom: 10px;
        display:block;
        width:60px;
        height:60px;
        position: fixed;
        left:10px;
        bottom:100px;
        border-radius:60px;
        line-height:40px;
        text-align:center;
        z-index:5000;
    }
.btn-whatsapp:focus,
.btn-whatsapp:hover {
    transform: scale(1.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .09), 0 4px 40px rgba(0, 0, 0, .24)
}