test/reftest: [43 unreftestable tests] position-relative-002

Author: TalbotG

test/reftest.txt

@@ -206,7 +206,7 @@ The following is a list of 43 CSS2.1 tests that appear to be unreftestable:
 |[RC6] bottom-applies-to-008]] **Reasons why**: I have not found a way to create a reftest for this test. Maybe there is a way but so far I have not found one. The same problem applies as well to [[http://test.csswg.org/suites/css2.1/20110323/html4/position-applies-to-008.htm
 |[RC6] position-applies-to-008]]
   - [[http://test.csswg.org/suites/css2.1/20110323/html4/position-relative-002.htm
-|[RC6] position-relative-002]] **Reasons why**: I have not found a way to create a reliable and trustworthy reftest for this test... despite a lot of time spent on this. Even after setting line-height to 1.25, the offsetTop of ''<span>b</span>'' and of ''<span id="span1">a</span>'' are unexplicably 55px and 80px in Chrome 21 while it is 54px and 79px in other browsers (Firefox 15.01 and Opera 12.02) and when I think it should be 54px and 79px and not 55px and 80px. And I do not know why or if this is some kind of a bug.
+|[RC6] position-relative-002]] **Reasons why**: I have not found a way to create a reliable and trustworthy reftest for this test... despite a lot of time spent on this. Even after setting line-height to 1.25, the offsetTop of ''<span>b</span>'' and of ''<span id="span1">a</span>'' are unexplicably 55px and 80px in Chrome 21 while it is 54px and 79px in other browsers (Firefox 15.01 and Opera 12.02) and when I think it should be 54px and 79px and not 55px and 80px. And I do not know why or if this is some kind of a bug. [Addendum: the offsetTop value of ''<span>b</span>'' varies depending on the local font in use.]
 
 <del>[[http://test.csswg.org/suites/css2.1/20110323/html4/background-position-002.htm
 |[RC6] background-position-002]] **Reasons why**: Precise baseline-alignment positioning of ruler image is impossible to do with serif font; it varies from font to font.</del> I re-made the test to overcome such difficulty. I have now been able to create a reftest for such test.