body {
    background: white;
    color: black;
    margin-left: 10%;
    margin-right: 10%
    }
h1 {
    text-align: center;
    margin-top: 4em;
    color: black;
    background: white
    }
h2 {
    text-align: center;
    margin-top: 2em
    }
h3 {
    text-align: center
    }
p.indent {
    text-indent: 1em;
    text-align: justify
    }
p.sp_indent {
    text-indent: 1em;
    text-align: justify;
    margin-top: 2em
    }
p.center {
    text-align: center
    }
p.author {
    text-align: center;
    font-size: larger;
    margin: 2em
    }
p.subtitle {
    text-align: center;
    font-size: larger
    }
p.quote {
    text-align: justify;
    font-size: smaller
    }
p.footnote {
    font-size: smaller;
    text-align: justify
    }
p.index {
    text-align: justify;
    margin-top: 0;
    margin-bottom: 0;
    margin-left: 1em;
    text-indent: -1em;
    font-size: smaller
    }
p.index_gap {
    text-align: justify;
    margin-top: 1em;
    margin-bottom: 0;
    margin-left: 1em;
    text-indent: -1em;
    font-size: smaller
    }
p.image {
    text-align: center;
    margin: 0.5em
    }
p.book_title {
    text-align: center;
    font-size: x-large;
    margin-top: 2em
    }
td.right {
    text-align: right
    }
div.image {
    margin-left: auto;
    margin-right: auto;
    text-align: center
    }
span.page {
    text-align: right;
    text-indent: 0;
    color: gray;
    background: white;
    font-weight: normal
    }