.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%}
#usefulStackWrapperstacks_in_85 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_85 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 2%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_85 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_89{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_92 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_92 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 6%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_92 {
		display: none;
	}
}













#stacks_in_95 {
	font-size: 115%;
}
#usefulStackWrapperstacks_in_96 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_96 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 3%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_96 {
		display: none;
	}
}













#stacks_in_99 {
	font-size: 115%;
}