Changing width of store

[joannemojo]

I would like to have my store at a predefined width. Currently it's full page. I still want to standard OSC template as I like it but just want it narrower.

 

http://www.spidersmusic.com/browse is how it currently is but I would like it to have a width like www.pulseorganics.com for example.

 

I had a look through index.php etc but I didn't know what to change to make the outside/overall table narrower.

 

Any ideas? Thanks

[germ]

Take a peek at this:

 

Fixed Width Site with CSS

[joannemojo]

Thanks for that. Thats great :D