User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:23.0) Gecko/20100101 Firefox/23.0 (Beta/Release) Build ID: 20130814063812 Steps to reproduce: http://jsfiddle.net/V9TkT/ Actual results: Hovering with the mouse over the middle section of the triangle did not change the mouse cursor icon. Expected results: Hovering with the mouse over the middle section of the triangle should change the mouse cursor icon.

You mean the unfilled centre? You'd need pointer-events:all; to make it do that.

Or do you mean that on the bottom left section of the almost horizontal red base of the triangle the pointer doesn't change?

I added a picture to clarify the issue.

Thanks for the report, we know about this one already though.

Ah ok, thanks.