.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_88 {
	font-size: 114%;
}
#usefulStackWrapperstacks_in_73 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_73 {
	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_73 {
		display: none;
	}
}












#stacks_in_10>.s3_row {
	margin: 0 -10px;
}

#stacks_in_10>.s3_row>.s3_column_left {
	width: 50.00%;
}

#stacks_in_10>.s3_row>.s3_column_right {
	width: 50.000000%;
}




#stacks_in_10>.s3_row>.s3_column {
	padding: 0 10px;
}










@media only screen and (max-width: 770px) {



}



@media only screen and (max-width: 400px) {


	#stacks_in_10>.s3_row  {
		margin: -10px 0;
	}
	#stacks_in_10>.s3_row>.s3_column {
		padding: 10px 0;
		width:100%;
	}


}





.youtube-wrapper.stacks_in_75{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_37 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_37 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_37 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_76{padding-top:calc((/)*100%)}
.youtube-wrapper.stacks_in_77{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_39 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_39 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_39 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_78{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_106 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_106 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_106 {
		display: none;
	}
}












#stacks_in_91>.s3_row {
	margin: 0 -10px;
}

#stacks_in_91>.s3_row>.s3_column_left {
	width: 50.00%;
}

#stacks_in_91>.s3_row>.s3_column_right {
	width: 50.000000%;
}




#stacks_in_91>.s3_row>.s3_column {
	padding: 0 10px;
}










@media only screen and (max-width: 770px) {



}



@media only screen and (max-width: 400px) {


	#stacks_in_91>.s3_row  {
		margin: -10px 0;
	}
	#stacks_in_91>.s3_row>.s3_column {
		padding: 10px 0;
		width:100%;
	}


}





.youtube-wrapper.stacks_in_97{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_99 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_99 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_99 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_101{padding-top:calc((/)*100%)}
.youtube-wrapper.stacks_in_92{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_94 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_94 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_94 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_96{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_108 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_108 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_108 {
		display: none;
	}
}












#stacks_in_116>.s3_row {
	margin: 0 -10px;
}

#stacks_in_116>.s3_row>.s3_column_left {
	width: 50.00%;
}

#stacks_in_116>.s3_row>.s3_column_right {
	width: 50.000000%;
}




#stacks_in_116>.s3_row>.s3_column {
	padding: 0 10px;
}










@media only screen and (max-width: 770px) {



}



@media only screen and (max-width: 400px) {


	#stacks_in_116>.s3_row  {
		margin: -10px 0;
	}
	#stacks_in_116>.s3_row>.s3_column {
		padding: 10px 0;
		width:100%;
	}


}





.youtube-wrapper.stacks_in_122{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_128 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_128 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_128 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_126{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_130 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_130 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_130 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_127{padding-top:calc((/)*100%)}
.youtube-wrapper.stacks_in_117{padding-top:calc((/)*100%)}
#usefulStackWrapperstacks_in_119 {
	margin: 0 auto;
	min-width: 0px;
	max-width: 10000px;
	min-height: 0px;
	max-height: 20000px;
	overflow: hidden;
	position: relative;
	
}

#usefulStackstacks_in_119 {
	padding-bottom: 0%;
	padding-top: 0%;
	padding-left: 0%;
	padding-right: 0%;
	
	margin-bottom: 0%;
	margin-top: 4%;
	margin-left: 0%;
	margin-right: 0%;
	
	display: block;
}








@media screen and (max-width: 100px) {
	#usefulStackstacks_in_119 {
		display: none;
	}
}












.youtube-wrapper.stacks_in_121{padding-top:calc((/)*100%)}