/* debut ruban */
.ruban {
    background-image: url('/images/ruban.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    width: 100%;
    height: 30px;
}
@media (max-width: 768px) {
    .ruban {
        height: 15px; /* Desktop */
    }
}
/* fin ruban */