body {
    background: #5389f0 url('../img/home/bg_mobile.jpg') no-repeat center top;
    background-size: cover;
}

main {
    position: relative;
}

.buttons img {
    height: 12vw;
}
.buttons .center-margin {
    margin: 0 -20px;
}

#sostenible {
    position: absolute;
    bottom: 15px;
    right: 15px;
    width: 50px;
    height: 50px;
    background: transparent url('../img/home/sostenible.png') no-repeat center;
    background-size: contain;
}

#wafi {
    max-height: 50vw;
}
#artists {
    max-width: 90vw;
}

@media (min-width: 992px) {
    body {
        background-image: url('../img/home/bg.jpg');
    }
    .menu header {
        background-color: transparent;
    }

    .buttons img {
        height: 60px;
    }

    #wafi {
        max-height: 240px;
    }
    #artists {
        max-width: 580px;
    }

    #sostenible {
        width: 70px;
        height: 70px;
    }

    @media (max-height: 720px) {

        #wafi {
            max-height: 180px;
        }
        #artists {
            max-width: 500px;
        }
        .buttons {
            margin-bottom: 20px;
        }

    }

}