.tarif-table {
    width: 100%;
    border-collapse: collapse;
}

.tarif-table th, .tarif-table tr, .tarif-table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.tarif-table tbody.separator td {
    background-color: #f0f0f0 !important;
    font-weight: bold;
    text-align: center;
}
#div_formulaire{
  text-align: center;
  margin: 15px;
}
#div_resultat{
  text-align: center;
  margin: 15px;
}