body {
 background-color: #000;
}

#colonne {
 text-align:center;
}

.imagefond {
 min-height: 800px;
 min-width: 800px;
 margin-top: 60px;
 text-align:center;
 background-image: url(background.jpg);
 background-repeat: no-repeat;
 background-position: top center;
}

.chat {
 padding-left: 119px;
 padding-top: 21px;
}