html {
	font-size: 62.5%;
}
body {
	margin: 0;
	font-size: 1.5rem;
}
*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
p {
	margin: 0 0 1em;
}
p:last-of-type {
	margin: 0;
}

.contents {
	max-width: 630px;
	margin: 0 auto;
	padding: 20px;
	background: #f2f2f2;
}
.title {
	margin: 0 0 1em;
	font-weight: bold;
}
.box {
	margin: 0 0 1em;
	background: #fff;
	border: 1px solid #ccc;
}
.inner {
	height: 160px;
	overflow-y: auto;
	margin: 1em;
	padding-right: 1em;
}

::-webkit-scrollbar {
	width: 6px;
	height: 6px;
}
::-webkit-scrollbar-track {
	border-radius: 3px;
	background: #d3d3d3;
}
::-webkit-scrollbar-thumb {
	border-radius: 3px;
	background: #6c6c6c;
}

.copyright {
	text-align: center;
	padding-top: 2em;
	font-size: 14px;
}