h1 {
    line-height: 26px;
    text-decoration: underline;
}
h2 {
    line-height: 26px;
    text-decoration: underline;
}

div.section {
    padding: 20px;
    font-family: Meiryo;
    border: 1px dotted gray;
}

pre {
    padding-left: 2px;
    border-width: 1px 1px 3px 3px;
    border-style: solid;
    border-color: #555555;
    font-family: monospace;
}