.p-drawerUnderlayer {
	position: fixed;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 99; // header - 1
	width: 100%;
	height: 100%;
	overflow: hidden; // before要素が画面外にいっても大丈夫なように
	background: none;
	visibility: hidden;
	opacity: 0;
	transition: opacity .5s, visibility .5s;

	[data-loaded="false"] & {
		display: none;
	}

	[data-drawer="opened"] & {
		visibility: visible;
		opacity: 1;
	}
}