body {
	background:#000000
}
.nb-video-123 {
	position:absolute;
	z-index:3;
	left:50%;
	top:0;
	width:1600px;
	height:538px;
	margin-left:-800px;
}
.audio-control {
	position:absolute;
	z-index:5;
	top:150px;
	right:280px;
	text-indent:-9999em;
	overflow:hidden;
	width:51px;
	height:51px;
	background:url(http://www.jq22.com/tp/732f9bd5-899b-4658-b847-67720cb85016.png) no-repeat;
}
.audio-yes {
	background-position:-246px 0;
}
.audio-no {
	background-position:-316px 0;
}