#header_news_1{
    background: url("/public/images/ours/news_top.jpg") no-repeat;
    background-size:100% 100%;
    height:40%;
}

@media (max-width: 768px) {
    #header_news_1{
        height:30%;
    }
}

#news_1{
    background-color: #fff;
    height:auto;
}