#leftBox {
	display: none;
}
#rightBox {
	width: 100%;
	padding: 0;
}
#contents {
	width: calc(100% - 20px);
	max-width: 960px;
	background: #fdfbf2;
	border-radius: 10px;
	margin: 20px auto;
	border: 1px solid #604f42;
	padding: 10px 0;
	box-sizing: border-box;
}