<!--
HTML {
  height: 100%;
  width: 100%;
  display:table;
}
BODY {
  margin:0;
  height: 100%;
  display: table-cell;
 vertical-align: middle;
  text-align:center;
   //*
  behavior: expression(
	this.currentStyle.getAttribute("display")=="block" && (
		heightBase = document.createElement('div'),
		heightBase.className = 'heightBase',
		this.appendChild(heightBase),
		this.style.behavior = "none"
	)*//
);
}
<!--
#site_area{
  padding:0px;
  margin:0px auto;
  width:900px;
  height:auto;
}
#p_head{
background-color:#ffffff;

border-bottom:2px solid #ffccff;
background-image:url(images/mori_1.jpg);
background-repeat:no-repeat;
font:メイリオ;
font-size:26px;
font-style:normal;
text-align:left;
padding-top:12px;
padding-left:20px;
height:125px
}

#Flash_1{
  background-color: #ffffff;
  padding:0px;
  margin:0px;
  width:660px;
  height:240px;
  position: relative;
  top: 0px;
  left: 0;
  float:right;
   padding:  -20px;
  }
#line_1{
  background-color: #ffffff;
font-family:メイリオ;
font-size:16;
line-height:120%;
padding-top:auto;
border-top:15px;
width:900px;
height:10px;
float:left;
} 
#item_1{
background-color:#ffffff;
background-image:url(images/waku1.gif);
background-repeat:no-repeat;
font-family:メイリオ;
font-size:16;
line-height:100%;
text-indent:1em;
margin-top:5px;
padding-top:0px;
padding-left:7px;
width:660px;
height:400px;
float:right;
position:relative;;font-color:#555555
}
#item_1 h2{
 font-family:メイリオ;
 font-size:14;
 padding-top:0px;
padding-left:5px;

}

#item_2{
  background-color: #ffffff;
 font-family:メイリオ;
font-size:16;
line-height:120%;
text-indent:1em;
vertical-align:text-bottom;
width:660px;
height:auto;
float:right;
position:relative;;font-color:#555555
}
#item_3{
  background-color: #ffffff;
 font-family:メイリオ;
font-size:16;
line-height:120%;
text-indent:1em;
vertical-align:text-bottom;
width:660px;
height:auto;
float:right;
position:relative;;font-color:#555555
}
#left_side{
  background-color: #ffffff;
  margin:0px;
  width:200px;
  height:auto;
  float:left;
  clear:both;
}
#left_side h2{
 font-family:メイリオ;
 font-size:12;
 border: 3px double #E9E7DE;

}
#footer{
  background-color: #ffffcc;
  border-bottom:2px solid #555555;
  border-top: 1px solid #555555;
  font-color:#ff0000;
  font-family: メイリオ;
  font-size:10;

  height:auto;
  padding:0px;
  margin:0px;
  position: relative;
  top: 0px;
  left: 0;
  text-align:center;
  clear:both;
}

/*メインメニュー
------------------------------------------------------------------*/
ul#menu {
	list-style-type: none;
	margin: 8px 0px;
	padding: 0px;
	font-size: 12px;
}
/*メインメニューのリンク設定
------------------------------------------------------------------*/
ul#menu a {
	background: url(images/menu_bg.gif) no-repeat;
	height: 38px;
	margin-bottom: 3px;
	line-height: 38px;
	color: #FFFFFF;
	text-decoration: none;
	display: block;
	padding-left: 20px;
	letter-spacing: 0.1em;
}
ul#menu a:hover {
	background: url(images/menu_bg_over.gif) no-repeat;
}

-->