.tail-top{ background:url(images/bg2.gif) repeat-x top}

.col-1, .col-2, .col-3, .col-4{ float:left}
/*======= width =======*/
.main{margin:0 auto; text-align:left; width:980px; background:url(images/bg1.gif) no-repeat top left }

/*======= header =======*/
#header {height:173px;}

/*======= footer =======*/
#footer { height:113px; }