body {
    margin: 0;
    padding:0;
    font-size: 25px;
}
.un {
    background-color: #f0da50;
}
.deux {
    background-color: #f09450;
}
.trois {
    background-color: #22d5f0;
}
.quatre {
    background-color: #ee6da1;
}
.cinq {
    background-color: #14b236;
}
.six {
    background-color: #1483d9;
}
.sept {
    background-color: #09f1ad;
}
.huit {
    background-color: #c7f571;
}
.neuf {
    background-color: #b2142e;
}
#conteneur div {
    text-align: center;
    padding: 20px;
    font-family: arial;
    font-weight: bold;
}