.author { font-size: 10pt; font-family: helvetica, arial, sansserif; text-align: center; margin-top: 12pt }
.copyright { text-align: center; text-indent: 0em; margin-left: 0em }
.exercice { font-size: 12pt; font-family: times, "times new roman", serif; margin-left: 2em }
.image { margin-left: 2em; border: none }
.input { font-weight: bold; font-size: 12pt; font-family: courier; margin-left: 2em }
.math { font-style: italic; font-size: 12pt; font-family: times, "times new roman", serif }
.message { color: blue; font-size: 12pt; font-family: courier; margin-left: 2em }
.output { font-size: 12pt; font-family: courier; margin-left: 2em }
.print { font-size: 12pt; font-family: courier; margin-left: 2em }
a:active { color: #c00 }
a:link { }
a:visited { color: #060 }
body { font-size: 12pt; font-family: times, "times new roman", serif; background-color: #fff }
em { }
h1 { font-size: 36pt; font-family: helvetica, arial, sans-serif; text-align: center; margin-top: 30pt }
h2 { font-size: 24pt; font-family: helvetica, arial, sans-serif; text-align: left; margin-top: 30pt; margin-bottom: 30pt }
h3 { font-size: 16pt; font-family: helvetica, arial, sans-serif; margin-top: 15pt }
h4 { font-size: 14pt; font-family: times, "times new roman", serif; margin-top: 12pt }
h5 { font-size: 12pt; font-family: times, "times new roman", serif; margin-top: 6pt }
h6 { font-size: 30pt; font-family: helvetica, arial, sans-serif; margin-top: 12pt }
p { font-size: 12pt; font-family: times, "times new roman", serif; margin-bottom: 3pt }
strong { }
sub { font-size: 9pt }
sup { font-size: 9pt }