<!--
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:1000;
}
#p_head{
background-color:#ffffff;
background-image:url(images/konkatu_cg.jpg);
background-repeat:no-repeat;
font:メイリオ;
font-size:26px;
font-style:normal;
text-align:left;
margin:0px;
padding-top:12px;
padding-left:20px;
height:120px
}

#line_1{
background-color:#ffffff;
margin-bottom:5px;
padding-top:auto;
border-top:5px;
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:320px;
float:left;
position:relative;;font-color:#555555
}
#item_1 h2{
color:#808080;
font-family:メイリオ;
font-size:100%;
line-height:26px;
text-align:left;
padding-top:2px;
padding-left:10px;
width:auto
}


#item_1 p{
color:#333333;
font-family:メイリオ;
font-size:12px;
text-align:left;
padding-top:4px;
padding-left:14px
}

#item_2{
background-color:#ffffff;
font-family:メイリオ;
font-size:16;
line-height:120%;
text-align:left;
text-indent:1em;
vertical-align:text-bottom;
margin-top:5px;
margin-bottom:10px;
width:720px;
height:auto;
float:left;
position:relative;;font-color:#555555
}
#item_2 h2{
color:#808080;
font-family:メイリオ;
font-size:14px;
font-size:100%;
line-height:26px;
padding-left:10px;
padding-top: 2px;
border:3px double #e9e7de;
width:auto;
}


#item_2 p{
color:#333333;
font-family:メイリオ;
font-size:12px;
text-align:left;
padding-top:4px;
padding-left:14px
}


}
#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:160px;
float:left;
position:relative;;font-color:#555555
}

#side_area{
background:#ffffff;
text-align:center
width:180px;
height:auto;
float:right;
}


サイド・メニュー
-------------------------------------------------------------------*/
#side {
background:#ff33ff;
width:200px;
height:200px;
float:center;
}

#side li {
list-style-type:none
}

#side_d {
background-color:#ffffff;
text-align:center;
margin-top:5px;
margin-bottom:5px;
padding-top:5px;
padding-bottom:5px;
border:3px double #e9e7de;
width:160px;
float:center
}

#side_d h3 {
color:#333333;
background-image:url(images/tab_1.gif);
background-repeat:no-repeat;
font-size:12px;
line-height:24px;
text-align:center;
margin-top:0px;
margin-bottom:0px;
margin-left:auto;
margin-right:auto;
padding-top:2px;
border-bottom-color:#6f2c58;
border-bottom-width:1px;
width:152px;
display:block
}
#side_d h2 {
color:#333333;
background-image:url(images/tab_1.gif);
background-repeat:no-repeat;
font-size:12px;
line-height:24px;
text-align:center;
margin-top:0px;
margin-bottom:0px;
margin-left:auto;
margin-right:auto;
padding-top:2px;
border-bottom-color:#6f2c58;
border-bottom-width:1px;
width:152px;
display:block
}
#side_d ul {
	margin-bottom: 5px;
}

#side_d li a {
color:#990000;
background-color:#ffffff;
background-image:url(images/menu_bg.gif);
background-repeat:no-repeat;
font-size:12px;
line-height:25px;
text-align:center;
margin-left:auto;
margin-right:auto;
border-bottom-width:1px;
width:152px;
display:block
}
*:first-child+html #side_d li a {
color:#990000;
background-color:#fff0ff;
background-image:url(images/menu_bg.gif);
background-repeat:no-repeat;
font-size:12px;
line-height:25px;
text-align:center;
margin-left:-12px;
margin-right:auto;
border-bottom-width:1px;
width:152px;
display:block
}


#side_d li a:hover {
color:#000000;
background-color:#f5fffa;
text-decoration:none
}


#side img {
	border:none;
}

#side p {
	padding: 10px;
}

#side p a {
	font-size:10px;
	background-color: #E2DECF;
	display: block;
	padding: 10px;
	line-height: 15px;
	border: 2px solid #C6BCB0;
}
#footer{
background-color:#ffffcc;
font-family:メイリオ;
font-size:10px;
text-align:center;
margin:0px;
padding:0px;
height:100px;
clear:both;
position:relative;
top:0px;
left:0;;font-color:#ff0000
}

/*メインメニュー
------------------------------------------------------------------*/
ul#menu {
font-size:12px;

padding-left:0px;
list-style-type:none
}
/*メインメニューのリンク設定
------------------------------------------------------------------*/
ul#menu a {
color:#000000;
background:url(images/menu_bg.gif) no-repeat;
padding-top:4px;
letter-spacing:2px;
text-align:center;
text-decoration:none;
height:27px;
display:block
}


ul#menu a:hover {
background:url(images/menu_bg_over.gif) no-repeat;
}
ul#menu a:hover {
	background: url(images/menu_bg_over.gif) no-repeat;
}

-->