section{
	margin-left: 10px;
	padding: 10px;
	width: 460px;
	height: 450px;
	background-color: #fff;
	border: 1px solid #000;
	display: flex;   /*flexbox定義*/
	flex-direction: column;  /*列方向に*/
	align-items: flex-end;  /*列を逆方向(右)に寄せる*/
}

.clsBox{
	width: 50px;
	height: 50px;
	margin: 5px;
	background-color: #555;
}