html - What browsers support `overflow-y`?

Question

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?

Answer 1

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.