.bandeau {
    display: none;
}
#bandeauTexte {
    height:24px;
    max-height: 24px;
}
@media (max-width:500px){
    #bandeauTexte {
        height:50px;
        max-height: 50px;
        width: 350px;
    }
    .sale-banner__text {
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .bandeau {
        height: 50px;
    }
    span.sale-banner__text p {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 350px;
        transition: 2s all;
    }
}