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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 (0,20) 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 620: "This is div2. This text should be blue because a matching rule with that property has been added."
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          text run at (0,0) width 513: "This is div3. This text should not be yellow because that rule has been removed."
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          text run at (0,0) width 628: "This is div4. This text should be green because a matching rule with that property has been added."
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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."