.youtube-wrapper{width:100%;padding-top:56.25%;position:relative}.youtube-wrapper > .fluid-width-video-wrapper,.youtube-wrapper > iframe{position:absolute;top:0;left:0;width:100%}.youtube-wrapper > iframe{height:100%}

#stacks_in_39 {
	margin:  20px;
	padding:  20px;
}

#stacks_in_29 {
	margin:  20px;
	padding:  20px;
}