.development .f2 {
	background-image: url('../training-background.jpg');
}

@media screen and (min-width: 901px) {
	.development .f1 > .mobile,
	.development .f2 .w1200 > .mobile {
		display: none !important;
	}
}

@media screen and (max-width: 900px) {
	.development .f1 > .pc,
	.development .f2 .f2Box {
		display: none !important;
	}

	.development .f1 > .mobile,
	.development .f2 .w1200 > .mobile {
		display: block !important;
	}
}