.btn-whatsapp-flutuante a {
    color: #fff;
    text-decoration: none;
    display: block;
}

.btn-whatsapp-flutuante {
    z-index: 10000;
    position: fixed;
    right: 0;
    bottom: 4px;
    transform: translate(-50%, -50%);
    background-color: rgb(37, 211, 102);
    width: 60px;
    height: 60px;
    text-align: center;
    line-height: 58px;
    font-size: 1.8em;
    color: #ffffff;
    font-weight: 100;
    border-radius: 50%;
}