can jQuery get the size of a dynamic element that has not been drawn

[usmcgecos]

What i mean is if i create a Element with jQuery and DOM\[code\]var MainHolder = $(document.createElement("div")).addClass("box");\[/code\]if i was to call \[code\]MainHolder.width()\[/code\] without drawing the element in the window would it be cleaver and work out that it gets the width from the \[code\].box\[/code\] CSS class or would it just return 0 as it's not drawn so it can't work it out?