.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%}
.youtube-wrapper.stacks_in_2{padding-top:calc((360/640)*100%)}

#stacks_out_9 {
	width: 74%;
}