title: List Item Grid Breaking on Firefox
body: <p>I'm working on this website that generates a grid based on a list of divs. But the grid is breaking on Firefox and I've been digging for hours but still can't make it work. I've tried changing the width of the item, rearranging margin, padding, display, but none of them seems to work. Please help me. 
  This is the URL <a href="http://sandulsc.nextmp.net/products/blinds-shades/natural-shades.html" rel="nofollow">http://sandulsc.nextmp.net/products/blinds-shades/natural-shades.html</a></p>