changing the background in .css

[tpeck]

I am having trouble doing a simple thing: changing the basic background colour - not inside the zencart, but around it.



I have tried adding this in various .css files of my template, but no go:

body {
background-color: #e5edf5;
background-image: url('http://mydomain.com/images/bg2.gif');
background-repeat: repeat-x;
}

Am I looking in the wrong place?