/* CSS layout */
body {
	margin: 0;
	padding: 0;
	background-image: url('img/haikei.gif');

}

#masthead {
	width:900px;
	height:100px;
	background-image:url('img/header_yacyou2.png');
}

#top_nav {
}

#container {
	min-width: 600px;
}

#left_col {
	float: left;
	width: 135px;
	font-size:15px;
	font-weight:bold;
	padding:10px;
}

li.left_col{
	background-color:transparent;
	color:black;
	font-size : 12px;
	font-weight:normal;
	border-bottom:1px solid #4FC;
	border-top:1px solid #4FC;
	list-style-type: none;
	line-height: 18px;
	margin: 0 0;
	padding-left:0px;

}

li.left_col　a{
	display: block;
	padding-left:5px;
}

li.left_col a:link{
	text-decoration: none; 
	background-color: transparent;
	color:blue;
}

li.left_col a:hover{
	text-decoration: none; 
	background-color: #0F0;
	color:#000000;
}

#page_content {
	margin-left: 180px;
}

#footer {
	clear: both;
}

button.button_topnav {
    /*ボタンの中身を設定する部分*/

	font-size: 15px;
	padding: 10px;
	background-color: #00FA9A;
	color: #000000;
	border-style: none;
	text-align: center;
	transition:background-color 1s,color 1s;
	

}

button.button_topnav:hover {

    background-color: #FFC0CB;
    color: #000000;

}