body { margin-left: 10%; margin-right: 10%; color: black; background: white}
body { font-family: times, "times new roman", serif; font-size: 120%; }
sf { font-family: Helvetica, Arial, sans-serif ; }
itsf { font-style: italic; font-family: Helvetica, Arial, sans-serif ; }
tt { font-family: courier, "courier new", monospace}
strong { text-transform: uppercase;  font-weight: bold; }