body {
    background: white;
    margin-left: 10%;
    margin-right: 10%
    }
p.indent {
    text-indent: 3mm;
    text-align: justify
    }
p.contents {
    text-align: justify;
    text-indent: 3mm;
    margin-left: 2em
    }
p.center {
    text-align: center
    }
p.subtitle {
    text-align: center;
    font-size: large;
    font-weight: bold;
    margin-top: 2em
    }
p.footnote {
    font-size: smaller
    }
p.questions {
    font-size: smaller;
    text-indent: 3mm
    }
p.right {
    text-align: right
    }
h1 {
    text-align: center;
    margin-top: 4em
    }
h2 {
    text-align: center;
    margin-top: 4em
    }
h3 {
    text-align: center;
    margin-top: 2em
    }
h4 {
    text-align: center
    }
div.center {
    text-align: center
    }
table.left {
    margin: 2mm
    }
table.right {
    margin: 2mm
    }
td.example {
    text-align: left;
    vertical-align: top;
    width: 50%
    }
td.left {
    text-align: left
    }
span.big {
    font-size: xx-large
    }
span.u {
    text-decoration: underline
    }