/* header*/
.header_area{width: 100%;height:100;;position: fixed;background: black;opacity: 60%;z-index: 10;}
.header_link{font-size: 24;display:block;width: 100;height: 100;margin: 0 0;float: right ;text-align:center;line-height:100px;position:static;}
.link_zone{left: 0;position: absolute;width: 1000;height: 100;display: inline-block;float: right }
.header_link_btn{display:block;width: 100;height: 100;background-color: grey;;color:black;text-decoration:none;position: static;}
.header_link_btn_onready{display:block;width: 100;height: 100;background-color: silver;;color:blue;text-decoration:none;position: static;}


.music_mark{position: fixed;block;width: 40;height: 40;background: url(../global/on.png);background-size:cover ; display: block ;z-index: 11;opacity: 40%;margin: 25 25;}
.music_mark_off{position: fixed;block;width: 40;height: 40;background: url(../global/off.png);background-size:cover ; display: block ;z-index: 11;opacity: 40%;margin: 25 25;}