._tln_float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 100;
    background-color: #25d366;
    background-image: url(../img/whatsapp-30.png);
    background-position: center center;
    background-repeat: no-repeat;
}
._tln_float:hover, ._tln_float:focus {
    background-color: #22c55f;
}