/* index 新 */
#main_container_index {
	height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
	/* debug */
	border: 1px solid aqua;
}
#mainlogo {
	width: 80%;
	text-align: center;
	/* debug */
	/* border: 1px solid aqua; */
}
#mainlogo img {
	width: 80%;
}