.bloc1 {
background:#fff;
clear: both;
}
.bloc2 {
background:#f2f0ed;
}
h1.titre_ref{
    font-size: 48px;
    text-transform: uppercase;
    font-weight: bold;
    color: #005e20;
    padding: 100px 0;
}
@media screen and (max-width:991px) {
h1.titre_ref {
font-size:28px;
padding: 10px 0;
}
}