change autofocus free theme background, different for every page

this is what i have now

/* =structure */
body{background-color:#FFF;color:#444;font:1.4em/1.6 “Hoefler Text”, “Georgia”, Georgia, serif, sans-serif;margin:0;padding:0}
body.home { background: #676754; }
body {background-color: #000000;
background-image: url(“https://retroruby.info/wp-content/uploads/2012/02/screeen-back6.png”);
background-repeat: no-repeat;background-position:center top;background-attachment: scroll; top;color:#444;font:1.4em/1.6 “Helvetica”, “Hoefler Text”, “Georgia”, Georgia, sans-serif;margin:0;padding:0}

body.page-id-the-legacy { background-image: url(“https://retroruby.info/wp-content/uploads/2012/02/The-Legacy-page4.png”);
background-repeat: no-repeat;background-position:center top;background-attachment: scroll; top;color:#444;font:1.4em/1.6 “Helvetica”, “Hoefler Text”, “Georgia”, Georgia, sans-serif;margin:0;padding:0}

#wrapper{padding:0;margin:0 auto;width:1000px;position:relative;display:block}

Hello All,
I have problems finding the part in style.css where I can add a background image. At that point it′s not necessary if the image is only on home page or on all pages.

I′m using autofocus 2.0.4 the free version.

Maybe the 2.0.4 is a bit different to the examples mentioned in the support forum. I can′t find any comment line like /*structure*/ or /*global*/

When inspecting my site with firebug I can see the background color is set in a file named /wordpress/#2
Wherever the file is stored I can′t find it.
If I could find that file, I think I can add a background image with
background-image: url(“path/filename.jpg”);

I′m at the beginning of development that′s why my website is only local, using WAMP

Thanks for your help