.banner {
    background: url('../resource/img/top/1.jpg') center center no-repeat;
    background-size: cover;
    height: 400px;
    color: #efefef;
    padding: 250px 20px 0 0;
}

@media (max-width: 768px) {
    .banner {
        padding: 220px 20px 0 0;
    }
}