body {margin: 0; padding: 0; background-image: url('bg.jpg'); background-repeat: no-repeat; background-position: center center; background-attachment: fixed; }
#imSite {width: 988px; margin: 15px auto; text-align: left; }
#imHeader {height: 120px; background-color: #E0E0E0; background-image: url('top.jpg'); background-repeat: no-repeat; }
#imBody {}
#imMenuMain {width: 148px; float: left; padding: 20px 0 0 5px; }
#imContent {width: 830px; float: left; margin-top: 10px; }
#imFooter {clear: both; height: 25px; }