:root {
    --blanco        : #ffffff;
    --verdeClaro    : #5FBC2E;
}

.boton_whatsapp, .frase-whatsapp {
    position: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    bottom: 2.5rem;
    right: 2.5rem;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;

    z-index: 10000;
    background-color: var(--verdeClaro);
}

.boton_whatsapp:hover {
    transform: translateY(7px);
    transition: all 0.3s;
}

.boton_whatsapp a {
    text-decoration: none;
}

.boton_whatsapp i {
    font-size: 2.5rem;
    color: var(--blanco);
}