.btnsfijos .icon-whatsapp {
    position: fixed;
    right: 5px;
    bottom: 15%;
}
.btnsfijos .icon-whatsapp {
    width: 47px;
    height: 47px;
    border-radius: 40px;
    background: #20c453;
}

.icon-whatsapp a {
    display: block;
}

.icon-whatsapp svg {
    width: 35px;
    height: 35px;
    margin: 6px;
}