body {
    margin-left: 10%;
    margin-right: 10%;
    text-align: justify
    }
p {
    margin-top: 1em;
    margin-bottom: 1em
    }
p.centered {
    text-indent: 0%;
    font-size: 100%;
    text-align: center
    }
h1 {
    text-align: center;
    margin-top: 2em;
    margin-bottom: 2em
    }
h2, h3, h4, h5 {
    text-align: center;
    margin-top: 2em;
    margin-bottom: 1em
    }