html, body, table {
    height: 100%;
    width: 100%;
    padding: 0;
    margin: 0;
}

body {
    font-size: 12px;
    background-color: dimgrey;
    text-align: center;
}

a, a:visited, a:hover {
    color: orange;
}

img {
    border: 0;
}

td {
    text-align: center;
    vertical-align: middle;
}