Change Code and Quote style

[rockinaway]

How can I change the style of my code and quote areas?

As you can see here:

http://www.adminfuel.com/vbulletin-f32/perfect-robots-txt-file-t1024/

It causes the width to increase badly.

Thanks

[Bellardia]

Styles and Templates > Style Manager > All Style Options > 'Code Block Width (pixels)'