.cs_video { position: relative; cursor: pointer; }
.cs_video video { width: 100%; height: auto; display: block; }
.cs_video.wf_playing:after { display: none; }
.cs_video:after { 
	content: ''; 
	position: absolute; 
	top: 50%; 
	left: 50%; 
	width: 80px; 
	height: 80px; 
	margin: -40px 0 0 -40px; 
	background: rgba(0,0,0,0.7); 
	border-radius: 50%; 
	pointer-events: none;
}
.cs_video:before { 
	content: ''; 
	position: absolute; 
	top: 50%; 
	left: 50%; 
	width: 0; 
	height: 0; 
	margin: -20px 0 0 -10px; 
	border-style: solid; 
	border-width: 20px 0 20px 30px; 
	border-color: transparent transparent transparent #fff; 
	z-index: 1;
	pointer-events: none;
}
.cs_video.wf_playing:before { display: none; }