CSS: Change width of Joomla template

[Horv]

I'm using the NightWaves theme (siteground-j15-70) for my Joomla website. I find the theme simply adorable but it has one flaw for me, it's too tight. I hope someone can take a look at the CSS template file and help me out. I'm a total noob when it comes to CSS. I did some poking around but failed miserably.

http://joomla15.siteground.com/?template=siteground-j15-70

Above is the preview of the template so you can see how it actually looks. I've attached a zipfile containing both the original template file and my own editings wich is a big fail. The background images disapeared and turned out all black.

What I need help with is, change the width of the area where text and such are placed. I understand if no one is willing to do it for me, but I'd need some help in what direction to go.

Thanks in advance!

 

[UndeadDragon]

I had a quick look through your experimental CSS and you changed everything that I thought of. I will have another look, but I don't think I will find anything.

 

[Horv]

Well, the width did change when I edited it, but the images was replaced by a black ocean.

 

[UndeadDragon]

I think that's because the images aren't made for repeating. They are just made for a fixed width website.

 

[Horv]

Any way the width can be changed and the images moved to new positions?

 

[UndeadDragon]

You would have to supply me with the full template and not just the CSS. Then I will see if it is possible.