body {
    margin-left: 10%;
    margin-right: 10%
    }
h1, h2, h3, h4, h5, h6 {
    text-align: center;
    clear: both
    }
p {
    margin-top: 0.51em;
    text-align: justify;
    margin-bottom: 0.49em;
    text-indent: 4%
    }
.nind {
    text-indent: 0%
    }
hr {
    width: 33%;
    margin-top: 2em;
    margin-bottom: 2em;
    margin-left: auto;
    margin-right: auto;
    clear: both
    }
table {
    margin-left: auto;
    margin-right: auto
    }
.figcenter {
    margin: auto;
    text-align: center
    }