/* 1700+ 
	These styles should implement multi columns

	http://webdesignerwall.com/tutorials/responsive-column-layouts

	Using nth-of-type
	The :nth-of-type(An+B) expression makes it very easy to clear the float and margin without having to add .first or .last class. For example:

	.grid4 .col:nth-of-type(4n+1)= target every 4th .col element, starting from the first
	.grid3 .col:nth-of-type(3n+1)= target every 3rd .col element, starting from the first
	.grid2 .col:nth-of-type(2n+1)= select every 2th .col element, starting from the first
html {background-color: #bbb;}
*/