.ads-box{
    display:block;
}
.ads-box img{
    width: 100%;
}
.single-box{
    width: 1100px;
    margin: 0 auto;
    background: #fff;
}
.single-box >  h3{
    border-bottom: 1px solid #5b5b5b;
    padding: 20px 0 20px 20px;
}
.single-box > .content{
    padding: 20px;
    box-sizing: border-box;
}


@media only screen and (max-width: 1260px) {
    .ads-box{
        margin-top: 0;
    }
    .single-box{
        width: 100%;
    }
    .single-box >  h3{
        width: 100%;
        box-sizing: border-box;
    }
    .single-box > .content,.single-box > .content img, .ads-box img{
        max-width: 100%;
    }
}