body {
    margin-left: 10%;
    margin-right: 10%
    }
.pn {
    text-indent: 0;
    font-size: smaller;
    text-align: right;
    color: silver
    }
#corpo p {
    text-align: justify;
    text-indent: 1em
    }
h1 {
    text-align: center;
    margin-top: 5em;
    margin-bottom: 5em
    }
h2, h3 {
    text-align: center
    }
#corpo p.ni {
    text-indent: 0
    }
hr {
    border: 0;
    border-top: solid 1px #000;
    width: 90%
    }
blockquote {
    margin-left: 20%;
    font-size: small
    }
.rodape {
    font-size: 0.8em;
    margin: 2em
    }
a {
    text-decoration: none
    }