html {
	font-family: "Helvetica Neue", "Helvetica", "Hiragino Sans", "Arial", "Yu Gothic", "Meiryo", sans-serif;
}
header {
	position: fixed;
	left: 0;
	top: 0;
	width: 100%;
	height: 64px;
	line-height: 64px;
	max-height: 64px;
	vertical-align: middle;
	background-color: #800080;
	z-index: 2147483646;
	text-align: center;
}
footer {
	font-size: 14pt;
	position: fixed;
	left: 0;
	bottom: 0;
	width: 100%;
	background-color: #808080;
	color: #ffffff;
	background: linear-gradient(to top, rgb(80, 80, 80), rgb(192, 192, 192));
	text-align: center;
	z-index: 2147483646;
}
/* iPhone SE */
@media screen and (max-width:375px) {
	footer {
		font-size: 8pt;
	}
}
/* SmartPhone */
@media screen and (min-width:376px) and (max-width: 480px) {
	footer {
		font-size: 10pt;
	}
}
/* PC,Tablet */
@media screen and (min-width: 481px){
	footer {
		font-size: 20pt;
	}
}