Make page (and sidebar) wider

Hi Christopher Roberts,

You have to change it to style.css. For further information how to customize a theme you may refer to this link http://www.throwingabrick.com/wordpress/customizing-the-wordpress-twenty-ten-theme.html

Try using Firefox with the Firebug add-on for this kind of CSS work.
http://getfirebug.com/

It will help you to pin down exactly what CSS you need to over-write in the child theme.