.youku_video_wrap:not(:first-child) {
	margin-top: 15px
}

.youku_video_wrap {
	position: relative;
	overflow: hidden;
	height: 0;
	padding-bottom: 56.25%;
}

.youku_video_wrap embed,
.youku_video_wrap iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%
}