#annonceUne {
 background:#FFF;
 border:solid #efefef 3px;
}
#annonceUne h2 {
font-size:30px;
font-weight:bold;
}
#annonceUneContenu {
font-size:12px;
text-align:justify;
}
#annonceUne img {
 text-align:center;
}