#swap {
    background-image: url(../images/swap_1920.jpg);
    height: 826px;
    background-position: 0px -100px;
}

@media screen and (max-width: 1366px) {
    #swap {
        background-image: url(../images/swap_1366.jpg);
        height: 650px;
        background-position: 0px bottom;
    }
}

@media screen and (max-width: 960px) {
    #swap {
        background-image: url(../images/swap_960.jpg);
        height: 530px;
        background-position: -30px bottom;
    }
}

@media screen and (max-width: 640px) {
    #swap {
        background-image: url(../images/swap_640.jpg);
        height: 600px;
        background-position: center 22px;
    }
}