Hidden div height (changing my advice)
<p>Ok, I was going to answer someone's question here on SO about why their script wasn't working. They loaded content into a hidden div, then got the height so they could animate the wrapping div. But I always try to test the code I provide. So I made <a href="http://jsfiddle.net/RdSzg/" rel="nofollow">this demo</a> to prove it to them.</p>

<p>So, umm, have I entered the twilight zone or am I dreaming right now? <em>pinches self</em> OUCH!</p>

<p>I tried that demo in Firefox, IE and Chrome and both methods return the same value. Firebug says zero! I rebooted my computer and I even changed the code a bit (removed the height function) and tried it with jQuery 1.3.2 and it still worked! I know hidden elements <strong>USED</strong> to return a zero value. Even this <a href="http://stackoverflow.com/questions/2345784/jquery-get-height-of-hidden-element-in-jquery-1-4-2">SO Answer</a> is giving the advice I would have!</p>

<p>So I guess my question is... did I miss something or are we giving bad advice?</p>
