From what I understand, overflow-y is a CSS3 selector. But at http://www.findmebyip.com/litmus, it doesn't have that selector shown, show I don't know what browsers support it.
First, are overflow-y and overflow-x actually CSS3 selectors?
Second, what browsers support them?
See Question&Answers more detail:os
No, overflow-x and y are not CSS3 selectors. They are simply properties, similar to overflow but with direction restrictions.
From http://reference.sitepoint.com/css/overflow
The CSS3 overflow-x and overflow-y properties are partially supported in Internet Explorer for windows versions 5 and 6 and fully supported in Internet Explorer versions 7 & 8. Safari 3+, Chrome 2+, Firefox 2+ and Opera 9.5+ all support these properties.
