#contenantmarque3 {
    display: flex;
    justify-content: flex-start;
    flex-wrap: nowrap;
    width: 94%;
    margin: 0 auto;
    margin-top: 20px;
}




@media screen and (max-width: 1200px)
{
#contenantmarque {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    width: 100%;
    margin: 0 auto;
}
}