.container-boton{
    background-color: #26D871;
    border: 1px solid #fff;
    position: fixed;
    z-index: 100;
    border-radius: 50%;
    bottom: 3%;
    right: 5.9%;
    padding: 15px;
    transition: ease 0.3s;
    animation: efecto 1.2s infinite;
}

.container-boton:hover{
    transform: scale(1.1);
    transition: 0.3s;
}


.boton{
    width: 40px;
    transition: ease 1s;
}

@keyframes efecto{
    0%{
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.85);
    }
    100%{
        box-shadow: 0 0 0 25px rgba(0, 0, 0, 0);
    }
}

.link {
    color: blue; text-decoration: underline;
}