@charset "UTF-8";

#USB31 {
    background: url("../images/usb_1920.jpg") center center no-repeat;
    height: 776px;
}

    #USB31 div {
        position: absolute;
        left: 182px;
        top: 164px;
        width: 840px;
        height: 247px;
    }


@media screen and (max-width: 1366px) {

    #USB31 {
        background: url("../images/usb_1366.jpg") center 0 no-repeat;
        height: 575px;
    }

        #USB31 div {
            left: 96px;
            top: 93px;
            width: 768px;
            height: 156px;
        }
}


@media screen and (max-width: 960px) {

    #USB31 {
        background: url("../images/usb_960.jpg") center bottom no-repeat;
        height: 700px;
    }

        #USB31 div {
            left: 4px;
            top: 67px;
            width: 614px;
            height: 177px;
        }
}


@media screen and (max-width: 640px) {

    #USB31 {
        background: url("../images/usb_640.jpg") center bottom no-repeat;
        height: 580px;
    }
}