var fx = new FX('box', {
	top: {to: rand(0, 300)},
	left: {to: rand(0, 40), units: 'ex'},
	width: {to: rand(10, 40), units: 'em'}, 
	height: {to: rand(10, 60), units: '%'},
	backgroundColor: {to: "rgb("+rand(0, 255)+", "+rand(0, 255)+", "+rand(0, 255)+")"}
}, 1, easing[rand(0, easing.length - 1)]);

fx.start();