body {
  margin: 0; /* pour éviter les marges */
  text-align: center; /* pour corriger le bug de centrage IE */
  background-color: #ffffff;
}

#global {
  position: relative; /* on positionne le conteneur */
  margin-left: auto;
  margin-right: auto;
  width: 900px;
  height: 100%;
  text-align: left;
  background-color: #ffffff;
  background-image: url('design/page_background.jpg');
}

h1 {
font-family: arial;
margin : 20px;
font-size: 110%;
text-align: left;
color: #222222;

}
h2 {
font-family: arial;
margin : 25px;
font-size: 100%;
text-align: left;
color: #444444;
}

h3 {
font-family: arial;
font-style: normal;
margin : 20px;
font-size: 80%;
text-align: center;
color: #444444;
}

p {
font-family: arial;
margin : 25px;
font-size: 80%;
text-align: justify;
color: #333333;
}

ul {
font-family: arial;
margin-top : 25px;
margin-bottom: 25px;
margin-left : 70px;
font-size: 80%;
text-align: justify;
color: #333333;
}

a {
font-family: arial;
font-size: 100%;
text-decoration: none;
color: #1e8ccd;
}
a:hover {
font-family: arial;
font-size: 100%;
text-decoration: underline;
color: #1e8ccd;
}