JS: aspect

JS: aspect

<div data-aspect="1.5"></div>

<script>
$(function($) {

	var onResizeWindow = function(){
		$('[data-aspect]').each(function(){
			var aspect = $(this).data('aspect') || 1;
			$(this).css('height', $(this).outerWidth() / aspect);
		});
	};
	onResizeWindow();

	$(window).on('resize', function(){
		onResizeWindow();
	});

});
</script>