Adding background color?

[Nick20000]

hi. how can i add a background color around behind the page like this? i added a picture.

 

http://www.shopmost.co.uk

 

thank you.

Edited July 13, 2014 by Nick20000 (see edit history)

[vekia]

follow this:

gray background - white page contents

 

 

just use these styles:

#page {
box-shadow: 0px 0px 20px #888;
padding: 10px;
background: #FFF;
}
body {
	background:#f4f4f4;
}

effect