/* formulaire contact */
.div_contact_form {
     float: left;
     height: auto;
     width: 100%;
     border-radius: 5px;
     padding: 30px;
     margin-top: 50px;
     margin-bottom: 50px;
     background-color: #FFF;
 }
 #form_attente, #message_reussite, #message_echec {
     float: left;
     width: 100%;
     height: 400px;
     text-align: center;
     display: none;
 }
 /* formulaire contact */