Houndstooth

gistfile1.css

background-color: white;
background-size: 1em 1em;
background-position:0em 0em,.5em .5em, -.5em .5em,.5em -.5em, 1.5em 1em,1em .5em;
background-image:
-webkit-linear-gradient(-45deg, white       25%, transparent 25%, transparent 75%, transparent 75%, transparent),
-webkit-linear-gradient(-45deg, transparent 25%, transparent 25%, transparent 75%, white       75%, white),

-webkit-linear-gradient(-135deg, #333 0%, #333 14%, transparent 14%, transparent 26%, #333 26%, #333 35%, transparent 35%, transparent 100%),
-webkit-linear-gradient(  45deg, #333 0%, #333 14%, transparent 14%, transparent 26%, #333 26%, #333 35%, transparent 35%, transparent 100%),

-webkit-linear-gradient(45deg, #333        25%, transparent 25%, transparent 75%, transparent 75%, transparent),
-webkit-linear-gradient(45deg, transparent 25%, transparent 25%, transparent 75%, #333        75%, #333);