#index_header{
	width:100%; height:30px;
	padding-top:235px;
	margin:10px 0px;
	background:url(img/index_header.jpg) center top;
	background-repeat:no-repeat;
	text-align:center;
	}
#index_header ul{
	margin-left:40px;
	list-style-type:none;
	}
#index_header li{
	float:left;
	text-align:center;
	margin-left:10px;
	border:1px solid silver;
	border-bottom:2px solid silver;
	border-right:2px solid silver;
	}
#index_header a{
	font-weight:normal;
	font-size:12px;
	color:gray;
	text-decoration:none;
	display:block;
	width:140px;
	}
#index_header a:hover{
	color:royalblue;
	text-decoration:underline;
	}

#index_side{
	float:right;
	width:227px;
	margin-top:20px;
	text-align:center;
	}
#index_contents{
	margin-bottom:70px;
	margin-left:30px;

	overflow:hidden;
	position:relative;
	zoom:1;	/* IE6対策 */
	}

div.bn{
	padding-bottom:15px;
	}
img.bn{
	padding:3px;
	border-top:1px solid silver;
	border-left:1px solid silver;
	border-bottom:2px solid silver;
	border-right:2px solid silver;
	}

#anniversary{
	text-align:center;
	}

/* -----------------コンテンツ----------------- */

.menu{
	width:700px;
	padding-top:30px;
	padding-left:10px;

	overflow:hidden;
	position:relative;
	zoom:1;	/* IE6対策 */
	}
.menu_tt{
	float:none;
	}
.menu_bn{
	width:230px;
	margin-top:20px;
	float:left;
	}