body, podruga {
	background-color: #222b47;
}
body {
	min-height: 100vh;
	margin: 0;
	display: grid;
	grid-template-rows: auto 1fr auto;
	font-family: Arial,sans-serif;
}
header, podruga, footer {
	width: 88%;
	margin: 20px auto;
	padding: 8px;
}
header, footer {
	font-size: 15px;
	white-space: nowrap;
	text-align: center;	
	overflow: hidden;
	color: #fff;	
}
podruga {
	background-image: url('podruga.png');
	background-repeat: no-repeat;
	background-position: center;
	background-size: contain;
	background-blend-mode: color-dodge;
}
footer {
	margin-bottom: 0;
}