I come back to right-to-left text such as Arabic and Hebrew. (Previous thread was "non-Latin-1 in iCab 3".) My test page http://www.unics.uni-hannover.de/nhtcapri/right-to-left.html lists all HTML and CSS constructs for bidirectional text. It uses only ASCII digits! You do not need to know Arabic or Hebrew; you don't even need fonts with Arabic or Hebrew letters. If your browser passes this test, it is likely to display Arabic and Hebrew pages correctly.