@mixin box-shadow {
	box-shadow: 0 1px 1px rgba(0,0,0,0.11), 
		0 2px 2px rgba(0,0,0,0.11), 
		0 4px 4px rgba(0,0,0,0.11), 
		0 6px 8px rgba(0,0,0,0.11),
		0 8px 16px rgba(0,0,0,0.11);
}