html {
    color: #444;
    font-size: 100%;
    font-family: Verdana, Arial,'Noto Sans', Roboto, Helvetica, sans-serif;
}
body {
    background-color: #ddd;
}
h1, h2, h3 {
    color: #666;
}
h1 {
    font-size: 2.0em;
}
h2 {
    font-size: 1.6em;
}
h3 {
    font-size: 1.2em;
}
a:link, a:visited {
    color: steelblue;
}
#main {
    display:block;
    max-width: 40.0em;
    margin: 0.7em auto;
    padding:0.7em;
    background-color:#fff;
}
td {
    padding: 0.3em;
}