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          text run at (0,0) width 765: "This tests that insertRule, deleteRule, and the IE extensions addRule and removeRule update the style when rules are added and"
          text run at (0,20) width 392: "removed. It also tests that disabling a stylesheet updates the style."
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          text run at (0,0) width 459: "This is div1. This text should not be red because that rule has been removed."
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          text run at (0,0) width 587: "This is div3. This text should not be purple because the stylesheet with that rule has been disabled."