Rails spinoffs - Aug 2005 - What elements can be used with Effect.Slide{Up, Down}() ?

Hi,

it looks like there are some requirements for elements to be used
with Effect.Slide{Up,Down}().

A simple

 <div id="name">
 ....
 </div> 

does not slide down with Effect.SlideDown(''name''). However,
adding
something like <p></p> does the trick

 <div id="name">
 <p>....</p>
 </div>


Is this documented somewhere ?


Klaus