body{
    background-image: url('bg.png');
	background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}

h1, h2 {
    text-align: center;
}

table, tr, th, td {
    border: 1px solid black;
    border-collapse: collapse;
    padding: 5px;
    margin-left:auto;
    margin-right:auto;
    vertical-align: top;
}