html, body {
 height: 100%;
 }
body {
 color: gray;
 background: #3f0729;
 padding: 0;
 font-family: verdana, helvetica, arial, sans-serif;
 }
#global {
 background-image: url('img/pensons-Tux.png');
 background-position: center;
 background-repeat: no-repeat;
 min-height:100%;
 width: 90%;
 overflow: hidden;
 margin-left: auto;
 margin-right: auto;
 }
#entete h1 {
 text-align: center;
 }
#entete h2 {
 text-align: center;
 }
#navigation h3 {
 font-size: 150%;
 width: 45%;
 margin-left: auto;
 margin-right: auto;
 text-align: center;
 }
#navigation a:link {
 color: white;
 }
#navigation a:visited {
 color: yellow;
 }
#navigation a:hover {
 color: green;
 }
#contenu h4 {
 color: black;
 font-size: 150%;
 text-align: center;
 }
p {
 text-align: center;
 }
#pied {
 color: white;
 font-size: 120%;
 text-align: center;
}