Today I discovered this IE bug. Luckily, that site documents it and includes an odd workaround.

But the best part is that it includes this cynical and accurate quote: Why is this happening? Don’t ask such silly questions! This is IE, remember? Conformance with the specs is only to be hoped for, not expected.

Update: And then, I spent a lot of time dealing with this IE bug. Why is IE still so broken?