body {
  text-align: justify;
  font-family: Trebuchet MS,lucida,arial,sans-serif;
  font-size: 12px;
}
h1 {
  border-style: ridge;
  color: maroon;
  text-align: center;
}
h2 {
  text-decoration: underline;
}
h3 {
  font-style: italic;
}
img {
  border-style: solid;
  border-width: 1px;
}
ul {
  list-style-image: url(../illustrations_geologie_pedologie_sigales/grappe.gif);
  color: #990000;
  padding-left: 5px;
  margin-left: 10pt;
}
ul ul {
  list-style-type: circle;
  list-style-image: url(none);
}
a {
  text-decoration: none;
}
a:link {
  color: black;
}
a:visited {
  color: black;
}
a:hover {
  font-weight: bold;
}
p.align {
  text-align: center;
}
gras {
  font-weight: bold;
}
#contenu ul {
  list-style-image: url(none);
  list-style-type: square;
}