.top_inter {
    background-image: url(../img/bg_produit.jpg);
display: table;
    width: 100%;
    height: 45vh;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
position: fixed;
top:0;
}

@media (max-width: 1400px) {
.top_inter 
{
width: 100%;
height: 20vh;
}
.container-fluid{    padding: 0 50px;}
}