Using width with border?

[Tom]

Hey there,

I have 2 questions on using width with border.

1. How should I style input-fields with borders without setting a
width on them?
Just setting some padding does not work for form elements.

2. How should I create a page with a wrapper around it, which needs a
border?
e.g. .wrapper { margin: 0 auto; border:1px solid #ddd;width:646px }
Do I have to create additional containers for the border, even if I
don't need them?

Regards,
Tom