Content Box grows bigger as content is put in!

How can you make a content box grow as content is put in the table?

I mean when you have an image and then you want only the two left and right side to grow as the contents it put in?

I think you have to use XHTML right?

you can make a content "box" grow as content is added using either HTML or XHTML...this is the default behavior, as long as you don't specify a height and/or width of the box...