I do not think that it matters. I often have symbols elements that go outside of the symbol perimeter and they still show all of it on the stage and when the composition is played.
You cannot increase the size of the container after it is created. What you could do is start over and create a new symbol of a large rectangle then add your elements in it and delete the place holder rectangle.
Well, the reason I want it to acheive this is I want this place holder to push the other div below it and no scroll.
Like in a sub menu (Symbol in mycase ) - The items in each submenu of every menu varies. say 2 to 10 items. I dont want to reserve the space when I want to display only 2 and dont want to overshoot if I have reserved space for less.
You can set the overflow on your symbol to "visible," and it should display your dynamic elements just fine. The size of the div is set at author-time, though you can definitely change the symbol stage size after you create it - you can just click on the symbol substage and then change the size of the div there. However, if you have elements that are spilling over your symbol boundaries, setting the overflow to visible should solve your problem.
Thanks Elaine, But the Symbols overlap on the existing DIVs below.. However, if that is how it works i need to look for a work around.