* {
   font-family: Tahoma, Verdana, Arial, sans-serif;
}

img {
   vertical-align: middle;
   border: none;
}

li {
   padding-top: 5px;
}

div.footer {
   text-align: center;
}

div.section-toc {
   text-align: center;
}

h1 {
   padding-bottom: 15px;
}

span[lang="ja"] {
   font-family: MS Mincho, monospace;
}