div#header,
div#contents,
div#footer {
  margin: 0 auto;
  text-align: left;
  width: 940px;
  position: relative;
  background: #FFF;
}

/*----------------------------------------
	header
----------------------------------------*/
/*----------------------------------------
	content
----------------------------------------*/
/*----------------------------------------
	footer
----------------------------------------*/
/*----------------------------------------
	clearfix
----------------------------------------*/
.clearfix {
  min-height: 1px;
  _height: 1%;
}
.clearfix:after {
  content: ".";
  display: block;
  clear: both;
  height: 0;
  visibility: hidden;
}