独自タグの使用例
oeb文書
<chapter>
<milestone n="257" />
<chapterhead>Chapter one</chapterhead>
<p>Now is the time… </p>
</chapter>
付属のcss
chapter {page-break-before: always}
milestone { }
chapterhead {
font-weight: bold;
font-family: sans-serif;
text-align: center;
display: block;
margin-top: 4ex
}