html, body {
	background-color: #B1B6AB;
        background-position: center;
	color: #000;
	margin: 0 auto;
	padding: 0 auto;
}

#strona {
	width: 800px;
	height: 540px;
	background: url("images/tlo.jpg");
	background-repeat: no-repeat;
        background-position: center;
        margin: 0 auto;
        }