body {
    color: black;
    background-color: white;
    font-size: 16px;
    font-family: Calibri, Verdana, sans-serif;
}

h1, h2, h3 {
    color: #800020;
}

h1 {
    font-size: 120%;
}

h2 {
    font-size: 110%;
}

h3 {
    font-size: 100%;
}

img {
    vertical-align: text-bottom;
}

code {
    font-size: 100%;
    font-family: Consolas, "Courier New", monospace;
}

#valid {
    margin-top: 1em;
}