Try this:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<style>
section {
background: url(http://www.mamacinis.com/images/board.png)center center fixed no-repeat;
-moz-background-size: cover;
-webkit-background-size:cover;
background-size:cover;
min-height: 900px;
}
</style>
</head>
<body>
<section> Something here... </section>
</body>
</html>
Nancy O.