body:after{
	content:"";
	position:fixed; /* stretch a fixed position to the whole screen */
	top:0;
	height:100vh; /* fix for mobile browser address bar appearing disappearing */
	left:0;
	right:0;
	z-index:-1; /* needed to keep in the background */
	background: url(img/mr-background-2019.jpg) center center;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
}

.logo {
	margin-left: auto;
	margin-right: auto;
	width: 960px;
}