@charset "UTF-8";
#USB31 {
    background: url("../images/usb_1920.jpg") center center no-repeat;
    height: 776px;
}

#USB31 div {
    position: absolute;
    left: 130px;
    top: 84px;
    width: 1130px;
    height: 247px;
}

@media screen and (max-width: 1366px) {
    #USB31 {
        background: url("../images/usb_1366.jpg") center 0 no-repeat;
        height: 560px;
    }
    #USB31 div {
        left: 96px;
        top: 53px;
        width: 768px;
        height: 156px;
    }
}

@media screen and (max-width: 960px) {
    #USB31 {
        background: url("../images/usb_960.jpg") center 90px no-repeat;
        height: 638px;
    }
    #USB31 div {
        left: 30px;
        top: 10px;
        width: 581px;
        height: 196px;
    }
}

@media screen and (max-width: 640px) {
    #USB31 {
        background: url("../images/usb_640.jpg") center bottom no-repeat;
        height: 635px;
        /*background-position: center 184px;*/
    }
}