Font sizer for a content well

We are using this font sizer where I work. It change the font size on all tags inside of div "textArea" that do not have a specifc font size defined. That way, your regular p tags and headers will font size, but if you must keep something the same, you can override. All it does it set a class on the content container div, defining the font size within. Its too long to include as a snippet, so you can get it here.