.whatsapp {
            position:fixed;
            width:60px;
            height:60px;
            bottom:40px;
            right:40px;
            background-color:#25d366;
            color:#FFF;
            border-radius:50px;
            text-align:center;
            font-size:30px;
            z-index:100;
            }
    .whatsapp-icon {
                margin-top:13px;
            }