@media (min-width: 320px) and (max-width: 750px) { 


}

@media (min-width: 470px) and (max-width: 500px) {
	


}

@media (min-width: 500px) and (max-width: 760px) {
	


}

@media (min-width: 760px) and (max-width: 900px) { 


}

@media (min-width: 900px) and (max-width: 5000px) { 
  

}


@media (min-width: 320px) and (max-width: 500px) {
	

}

@media only screen and (max-width:768px),
only screen and (max-width:1024px)  {

	video { 
		height:auto;
	}
}
@media only screen and (max-width:480px) and (orientation:portrait), 
only screen and (min-width:320px) and (max-width:480px),
only screen and (max-width:515px) and (orientation:landscape) {

	video { 
		height:auto;
	}
}