body {
    margin: 10%;
    text-align: justify
    }
h1 {
    text-align: center
    }
h2 {
    text-align: center
    }
h3 {
    text-align: center
    }
h4 {
    text-align: center
    }
hr.full {
    width: 100%
    }
a:link {
    color: #00f;
    text-decoration: none
    }
link {
    color: #00f;
    text-decoration: none
    }
a:visited {
    color: #00f;
    text-decoration: none
    }
a:hover {
    color: #f00;
    text-decoration: underline
    }
pre {
    font-size: 85%
    }