Switched buttons to use button element.  I actually don't like this and plan to revert, but I don't want to lose this in case I ever decide to go back to it.
Revert "Switched buttons to use button element.  I actually don't like this and plan to revert, but I don't want to lose this in case I ever decide to go back to it."

This reverts commit ab43b03642bb64e655a792db6f863a558c1b185a.
Tweaked border appearance; updated notes.