html,
body {
	min-height: 100%;
}

body {
	position: relative;
}

body::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 2147483647;
	pointer-events: none;
	background: url("perceive-paper-grain-overlay.png") center / 620px auto repeat;
	mix-blend-mode: multiply;
	opacity: 0.92;
}