.youtubeBlock {
    height: 0;
    overflow: hidden;
    padding-bottom: 56.25%;
    padding-top: 30px;
    position: relative;
}

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