I have a table that inside another table. As the parent table gets longer, I need the height of the nested table to also get longer, so that the top and bottom of the nested table always touches the top and bottom of the parent table. Is this possible? Without it, my layout breaks, and I can't think of any other way to do it. I tried to have height="100%" on the nested table, but that didn't do anything.

I find that using a style will work instead of using an attribute
put the following in the td tag

style="height: 100%"