body {
	position: relative;
}

body:after {
	position: absolute;
	width: auto;
	height: auto;
	z-index: 9999;
	content: '';
	display: block;
	pointer-events: none;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	background: url(/image.php?height=24&r=255&g=42&b=85) repeat top left;
}

body:active:after {
	display: none;
}