someStr anotherStr BUTTON yetAnotherStr
someStr anotherStr BUTTON yetAnotherStr
someStr anotherStr
yetAnotherStr
someStr anotherStr BUTTON yetAnotherStr
someStr anotherStr BUTTON yetAnotherStr

The red BUTTON above is a submit button diguised as link.
Gecko keeps adding space to the left and right,
MSIE adds (even more) space to the left, right and top.