body {
  background-color: #cccccc;
  padding: 0.5em;
  font-size: 18px;
}

h1 {
  margin-top: 1em;
  margin-bottom: 1em;
  text-align: center;
  color: #100020;
  font-size: 2em;
}

h2 {
  text-align: center;
}

ul {
  text-align: left;
}

img {
  border: 0px;
  padding: 0px;
}

.principal {
  background-image: url(./mont-shasta.png);
  background-position: 50% 50%;
  background-repeat: no-repeat;
  margin: 0em;
  padding: 0em;
  width: 800px;
  border: 1px solid black;
}

.banniere {
  margin: 0px;
  margin-bottom: 0.7em;
  text-align: center;
}

.liens {
  margin-left: 20%;
  margin-right: 20%;
  margin-top: 1em;
  margin-bottom: 2em;
  padding: 0.8em;
  border: solid 1px #00aa00;
  background-color: #ddffdd;
  color: #00aa00;
  text-align: center;
  font-weight: bold;
}

.liens a:link, .liens a:visited, .liens a:active {
  color: #00aa00;
  text-decoration: none;
}

.liens a:hover {
  color: #00ff00;
}

.pied {
  top-margin: 50em;
  padding: 1em;
  text-align:center;
  font-size: 0.5em;
}