This tests the WebKitCSSRegionRule interface. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS WebKitCSSRegionRule exists on Window object PASS WEBKIT_REGION_RULE exists on Window.CSSRule object PASS regionRule1.type is window.CSSRule.WEBKIT_REGION_RULE PASS regionRule1CSSRules.length is 2 PASS regionRule1CSSRules.item(0).type is window.CSSRule.STYLE_RULE PASS regionRule1CSSRules.item(0).cssText is '#p1 { background-color: green; }' PASS regionRule1CSSRules.item(1).cssText is '#p2 { background-color: lime; }' PASS regionRule2.type is window.CSSRule.WEBKIT_REGION_RULE PASS regionRule2CSSRules.length is 1 PASS regionRule2CSSRules.item(0).type is window.CSSRule.STYLE_RULE PASS regionRule2CSSRules.item(0).cssText is 'p { background-color: blue; }' PASS successfullyParsed is true TEST COMPLETE