The test passes if the fuchsia diamond is surrounded by a ring in all of the boxes on the page.
IE8 Mode (All Versions)
The diamond inside <div class="case negative negative3 t10"> is outside of the corresponding ring.
The test fails because the comma is invalid in the CSS 2.1 background-position declaration block. The comma is valid in the CSS3 background-position declaration but CSS3 is not supported in IE8 Mode.