There is one good point in the comments: "MATH! We need math! 50% -5px It’s stup...

		yaix on March 7, 2012 \| parent \| context \| favorite \| on: CSS4 Preview – Selectors There is one good point in the comments: "MATH! We need math! 50% -5px It’s stupid having to do things like this in JS." Completely agree! It should be possible to do this. And please: vertical-align:center for any block element. Or is that in CSS3 and I am not aware of it?

You can use calc (https://developer.mozilla.org/en/CSS/calc), but it isn't well supported.