h1 { text-align: center;
     margin-left: 5%;
     margin-right: 5%}

.author { text-align: center }

.affiliation { text-align: center }

ul { margin-left: 10%;
     margin-right: 0%;
     list-style-type: square }

ol { margin-left: 10%;
     margin-right: 0% }

.image { text-align: center }