you can set the button display as inline-block, the the problem will be fixed.

The problem is when i want to put an element("a" in my code) into an absolute positioned element and i also want this element("a") has a fixed height, then ie6 will render this element("a") as a common block element with a 100% width. I also found that if any css property can make element hasLayout added to the element in absolute positioned element in ie6, the problem will occur.

ie7 8 and other standard...