If a element is floated right or left in Safari 3 and 4, the border-right of an inline element does not render. The space is still preserved but this allows any background color to be shown on the parent floated element. In these demos the border-right of the inline elements is lime and the background for the parent floated element is red.
With anchors
With spans
With divs is display:inline;
With anchors
With spans
With divs is display:inline;