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          text run at (0,0) width 749: "This tests that insertRule, deleteRule, and the IE extensions addRule and removeRule update the style when rules are"
          text run at (0,18) width 489: "added and removed. It also tests that disabling a stylesheet updates the style."
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          text run at (0,0) width 490: "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 631: "This is div3. This text should not be purple because the stylesheet with that rule has been disabled."