body { margin-left:100px;font-family:monospace; margin-right:100px; }
h1 { margin-left:40px; margin-top:40px;}
h2 { margin-left:40px; margin-top:20px;}
.explanation { font-style:italic; font-family:monospace }
p,div,table,ul,ol { margin-left:30px;font-family:monospace; margin-right:100px; }
.navi { margin-left:5px; font-size:small;margin-right:100px; }