What is HTML Animation Wrap and do I use it?

[Ben]

Hi, I have a school assignment and it says The animation Wrap should be 960px (width) x 600px (height) and be centered in the middle of the page.

Have I done this correct? I have no idea what animationwrap is. I just copied it from an example assignment that was on another assignment.

Here is what I have done:

I made this line:

#divanimwrap
{
width: 960px; height: 600px;
position: absolute;}

And I have called all my divs for example divanimwraphouse etc. is this correct? If not pleas explain!