On my button tag (note: not input), I put the character "X". It looks all-right-ish. However, when I add a border, I realize that the character isn't really centered. There seems to be some kind of padding inside the button.
Is that something that can be removed? If so, how?
I've tried to add styles (the usual padding, margin, align and valign) but it didn't got me anything useful.
The problem looks like this jsFiddle.
<button style='width:18px;height:18px;'>X</button>