f*ck trying to make a responsive grid

gistfile1.html

	<div class="something">
		<div class="third">first child, no left padding.</div>
		<div class="third">left padding</div>
		<div class="third something">
			left padding
			<div class="half">first child, no left padding</div>
			<div class="half">left padding.</div>
		</div>
	</div>