@charset "UTF-8";
#USB31 {
    background: url("../images/usb_1920.jpg") center 0 no-repeat;
    height: 1023px;
    padding-top: 150px;
}

#USB31 .frame {
    width: 1020px;
    margin: 0 auto;
}

#USB31 .hdmi {
    position: absolute;
    left: 182px;
    top: 390px;
    width: 1100px;
    height: 247px;
}

#USB31 h2,
#USB31 h3,
#USB31 h4 {
    text-align: center;
}

@media screen and (max-width: 1366px) {
    #USB31 {
        background-image: url("../images/usb_1366.jpg");
        height: 807px; 
    }
    #USB31 .frame {
        width: 770px;
    }
    #USB31 .hdmi {  
        left: 96px;
        top: 330px;
        width: 768px;
        height: 247px;
    }
}

@media screen and (max-width: 960px) {
    #USB31 {
        background-image: url("../images/usb_960.jpg");
        height: 540px;    
        padding-top: 250px;
    }
    #USB31  .frame {
        width: 372px;
    }
    #USB31 .hdmi {
        left: 130px;
        top: 560px;
        width: 372px;
        height: 247px;
    }
    #USB31 h2,
    #USB31 h3,
    #USB31 h4 {
        text-align: left;
    }
}

@media screen and (max-width: 640px) {
    #USB31 {
        background-image: url(../images/usb_640.jpg);
        height: 250px;    
        padding-top: 10px;
    }
    #USB31  .frame {
    }
    #USB31 .hdmi {
        top: 60px !important;
    }
}