body {
    margin-left: 3em;
    margin-right: 3em
    }
p {
    text-indent: 1em;
    text-align: justify
    }
.chapter-head {
    text-align: center;
    font-weight: bold
    }
.chapter-body {
    text-align: center
    }
ul {
    list-style-type: none;
    margin-left: 1em
    }
h1, h2, h3, h4, h5 {
    text-align: center;
    margin-top: 1em
    }
hr {
    text-align: center;
    width: 50%;
    margin-bottom: 1em
    }
.note {
    font-size: 95%;
    text-indent: 0
    }
a:link {
    color: blue;
    text-decoration: none
    }
link {
    color: blue;
    text-decoration: none
    }
a:visited {
    color: blue;
    text-decoration: none
    }
a:hover {
    color: red
    }