html {
	overflow-x: hidden;
	overflow-y: hidden;
}
body {
	margin:0px;
	padding:0px;
}
.container {
    overflow-y: scroll;
    -ms-overflow-style: none;    /* IE, Edge 対応 */
    scrollbar-width: none;       /* Firefox 対応 */
}
.container::-webkit-scrollbar {  /* Chrome, Safari 対応 */
    display:none;
}
div.contents {
	margin:auto;
	width:100%;
	text-align:center;
}
iframe {
	width:100%;
	margin-bottom:60px;
	height:calc(100vh - 60px);
	border:0px;
}
a.menuBack {
	position:fixed;
	left:0px;
	bottom:0px;
	text-align:center;
	padding:0px;
	width:100%;
	margin:auto;
	color:#fff;
	background:#fff;
	font-size:1.1em;
	cursor:pointer;
	text-decoration:none;
}