body{
	background: #efefef;
}

a[href]{
	color: #555;
	text-decoration: none;
}
a[href]:hover{
	opacity: 0.5;
}
/*
a:hover{
	overflow: hidden;
	outline: none;
}
*/

/* header */
header{
	background: crimson;
}
header .inner{
	width:1000px;
	margin: 0 auto;
}
header h1{
	float: left;
	width: 350px;
	height: 140px;
	line-height: 140px;
}
header .information{
	float: right;
	width: 650px;
}
header ul#fontsize{
	margin-top:10px;
	margin-bottom:10px;
	display:flex;
	justify-content: flex-end;
	flex-wrap:wrap;
	height: 20px;
	line-height: 20px;
}
header ul#fontsize:before{
	content:"Font-size :";
	color:white;
	margin-right:5px;
	font-size:1.3rem;
}
header ul#fontsize li{
	width:45px;
	margin-left:5px;
	height: 20px;
	line-height: 20px;
}
header ul#fontsize li a{
	background:white;
	border-radius:5px;
	text-align:center;
	display:block;
	font-size:1.3rem;
	height:20px;
	line-height: 20px;
}
header ul#fontsize li a:hover{
	background-color: #ddd;
}
header ol li{
	text-align: right;
}
header ol li.presented{
	color:white;
	letter-spacing: 3px;
	font-size: 1.2rem;
}
header ol li.title{
	font-size: 3rem;
	font-weight:bold; 
	color: gold;
	line-height: 1.5;
}
header ol li.title span{
	font-size: 1.6rem;
}
header ol li.text span{
	background-color: #fff;
	font-size: 0.9rem;
	padding:5px;
}

/* navigation */
nav{
	background: #ddd;
}
nav .inner{
	width:1000px;
	margin: 0 auto;
}
nav ul{
	padding:20px 0;
}
nav ul li{
	float: left;
	width: 188px;
	margin-left:15px;
}
nav ul li:first-child{
	margin-left:0;
}
nav ul li a[href]{
	display:block;
	background-image:url(../images/ya01.png);
	background-repeat: no-repeat;
	background-position: 15px 50%;
	background-size: 10px;
	background-color:crimson;
	text-align:center;
	padding:20px 0;
	border-radius:5px;
	box-shadow: 1px 1px 1px rgba(0,0,0,0.4);
	color:white;
	font-size: 1.5rem;
}
nav ul li a[href]:hover{
	opacity: 0.5;
}
/* article */
article .inner{
	width:1000px;
	margin: 0 auto;
	background-color: white;
}

footer .inner{
	width:1000px;
	margin: 0 auto;
	background-color: white;
}
footer .copy{
	width:900px;
	margin: 0px auto;
	background-color: crimson;
	height:100px;
	line-height: 100px;
}
footer .copy p{
	text-align:center;
	color: white;
	font-size: 1.4rem;
}
a.gotop {
    background: rgba(220,20,60,.7);
    text-align: center;
    font-size: 2rem;
    border-radius: 10px;
    line-height: 45px;
    color: white;
    display: block;
	position:fixed;
	bottom: 10px;
	right: 10px;
    box-shadow: 1px 1px 1px rgba(0,0,0,0.4);
	width: 45px;
	height: 45px;
}
@media screen and (min-width: 769px) {
	.slicknav_menu{
		display:none;
	}
}
@media screen and (max-width: 768px) {
	header .inner{
		width:auto;
	}
	header h1{
		float: none;
		width: auto;
		text-align: center;
		height:auto;
		line-height: normal;
		padding:20px 0;
	}
	header .information{
		display: none;
	}
	nav{
		display: none;
	}
	#index nav{
		display: block;
	}
	nav .inner{
		width:auto;
		margin: 0 auto;
	}
	nav ul{
		padding:10px 0;
	}
	nav ul li{
		float: none;
		width: auto;
		margin:0;
		border-bottom:1px solid #464646;
	}
	nav ul li:first-child{
		margin-left:0;
	}
	nav ul li a[href]{
		background-image:none;
		padding:10px 0;
		font-size: 1.3rem;
		background-color: black;
    	border-radius: 0;
    	box-shadow:0 0 0;
	}
	nav ul li a[href]:hover{
		background-color: black;
		color: white;
		border-radius: 0;
		opacity: 0.8;
	}
	article .inner{
		width:auto;
		padding:0 10px;
	}

	footer .inner{
		width:auto;
	}
	footer .inner{
		width:auto;
		margin: 0 auto;
		background-color: white;
	}
	footer .copy{
		width:auto;
		height:auto;
		line-height:1.8rem;
	}
	footer .copy p{
		font-size: 1.2rem;
		padding:10px 0;
	}
	a.gotop{
		display: none;
	}
	
}