*{margin:0;padding:0;}

body{
    text-align:center;
    font-family:"ヒラギノ明朝 ProN","Hiragino Mincho ProN","游明朝体", "Yu Mincho", YuMincho, sans-serif;
    font-size: 16px;
    color: #221815;
    margin:0;
	background: url("../images/bg.jpg") no-repeat;
	background-color: #000000;
	background-size:cover;
	background-position: center;
	display: flex;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
}

#wrapper{
	width: 100%;
	height: auto;
}

#contents {flex-grow: 1;}

#topimg {
}

.btn {
	display: flex;
	width: 900px;
	margin: 0 auto;
	text-align: center;
	justify-content: space-around;
}


.btn img {width: 300px;}

.btn_img a {display: block;}
.btn_img a:hover {opacity: 0.6;}

/*#topimg {
	position: fixed;
	width: 100%;
	margin: 0 auto;
	bottom: 5%;
	text-align: center;
	
}*/

#footer {
	text-align: center;
	font-size: 10px;
	color: #ffffff;
	margin: 30px 0 0 0;
}

@media only screen and (max-width: 768px) {
	
#topimg img {width: 100%;}
	
.btn {
	display: flex;
	width: 90%;
	margin: 0 auto;
	text-align: center;
	justify-content:space-between;
}
	
.btn_img {margin: 0 10px;}
	
}