@charset "UTF-8";
#sound {
    background: url("../images/sound_1920.jpg") center 81px no-repeat;
    height: 840px;
}

#sound div {
    position: absolute;
    left: 211px;
    top: 22px;
    width: 904px;
    height: 274px;
}

#sound center {
    text-align: center;
}

@media screen and (max-width: 1366px) {
    #sound {
        background: url("../images/sound_1366.jpg") center 178px no-repeat;
        height: 697px;
    }
    #sound div {
        left: 174px;
        top: 46px;
        width: 602px;
        height: 289px;
    }
}

@media screen and (max-width: 960px) {
    #sound {
        background: url("../images/sound_960.jpg") center 35px no-repeat;
        height: 670px;
    }
    #sound div {
        left: 41px;
        top: 26px;
        width: 575px;
        height: 263px;
    }
}

@media screen and (max-width: 640px) {
    #sound {
        background: url("../images/sound_640.jpg") center 30px no-repeat;
        height: 600px;
    }
}