@CHARSET "UTF-8";
/**********************audio***********************/
.btn_music{
    display:inline-block;
    width:35px;
    height:35px;
    background:url('../images/08fc8dda0e764d96a70ffcba9789ded3.gif') no-repeat center center;
    background-size:100% auto;
    position:fixed;
    z-index:100;
    left:15px;
    top:20px;
    z-index:9999999;
}
.btn_music.on{
    background-image:url('../images/4293fa2691b049f2b06427d658f2ee82.gif');
}