p {
    margin-top: 0.75em;
    text-align: justify;
    margin-bottom: 0.75em
    }
h1, h2, h3, h4, h5, h6 {
    text-align: center
    }
hr {
    width: 33%;
    margin-top: 1em;
    margin-bottom: 1em
    }
body {
    margin-left: 10%;
    margin-right: 10%
    }
ol {
    list-style-type: upper-roman;
    margin-left: 5%
    }
.content {
    margin-left: 25%
    }
.figure {
    margin: 1em;
    border: thin silver solid;
    text-align: center;
    padding: 1em;
    margin-left: 0
    }
.letter {
    width: 25%;
    text-align: left;
    margin-top: 0.5em
    }
.ind {
    margin-left: 8%;
    margin-right: 8%;
    margin-top: 0
    }