body{
  font-family: Arial, Helvetica, sans-serif;
  font-size: medium;
  margin: 20px;
  color: black;
  background-color: white;
}

a:link {
  color: slateblue;
}

a:visited {
  color: #000099;
}

a:hover {
  background-color: #eaeaea;
  text-decoration: none;
}

h2 {
  text-align: center;
  color: slateblue;
}

h3 {
  text-align: center;
}

.marge {
  margin-left: 20px;
}

.prochain {
  margin-top:10px;
  margin-left: 10px;
  padding-top:10px;
  padding-left: 10px;
  padding-right:10px;
  padding-bottom:10px;
  border: 1px dotted black;
  background-color: PaleTurquoise;
  font-size:larger;
}

.expose {
  margin-left: 40px;
  padding-left: 5px;
}

.resume {
  margin-top:0px;
  padding-top:5px;
  padding-left: 5px;
  margin-left: 40px;
  margin-bottom: 0px;
  padding-bottom: 0px;
}

vert {
  color: green ;
}

rouge {
  color: red ;
}