This test checks that access to CSS properties via JavaScript properties on DOM elements is case sensitive. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". normal cases PASS element.style.zIndex is '1' PASS element.style.ZIndex is undefined. "css" prefix PASS element.style.cssZIndex is '1' PASS element.style.CssZIndex is '1' PASS element.style.CsszIndex is undefined. PASS element.style.csszIndex is undefined. PASS successfullyParsed is true TEST COMPLETE