When background-color is set via either a css stylesheet or the style attribute (via background-color or simply background) it computes properly when inspected with the Web Inspector, but does not render the background color. Example code: <a href="#" style="background: #0060A9;">Test</a> <a href="#" style="background-color: #0060A9;">Test</a> Neither displays the background color. This first showed up in r32407 and is in r32408 as well.
<rdar://problem/5882214>
Fixed in r32416.