add a warning for too many “overflow: hidden” declarations

[rolfmeijer]

As this declaration is often misused – for controlling the width of elements without considering the content of that element, or as a hack for clearing floated elements – I guess it would be wise to warn for this, possibly the same way is is done now for the float property.
Possible use cases for this declaration are in combination with word-wrap and text-overflow. Any more?

[nzakas]

Can you give some examples of patterns that could be problematic?

[nzakas]

I'm not sure how to tell the difference between a "good" use of overflow:hidden and a "bad" use, so I don't think there's a rule that can be made here. If you have some specific examples of these patterns, feel free to add to this bug so we can take a look.

[rolfmeijer]

Well, one good example: csslint.net (sorry).
Because the form users overflow: hidden the textarea cannot be enlarged, which is standard functionality in Webkit.
I just don’t understand the benefits of using it here. It only breaks things.
Obviously there are good reasons to use overflow: hidden, just like floats. So I was thinking of a warning in the same line, when it is used a lot a warning could be presented.
Apparantly it is not such a huge issue as I thought it was.