.header_section{
  background-color: rgb(245,245,245);
  margin-top: 20px;
  margin-bottom: 10px;
  margin-left: 0;
  margin-right: 0;
  text-align:center;
  padding-bottom: 8px;

  .form-group.description {
    display: none;
  }

  .form-group.mandatory {
    display: none;
  }
}

#liste_champ{
  .show_inline {
    display: inline-block !important;
  }

  .form-group.drop_down_list{
    display: none;
  }
}
.header_section{
  background-color: rgb(0, 49, 137);
  margin-top: 20px;
  margin-bottom: 10px;
  margin-left: 0;
  margin-right: 0;
  text-align:center;
  padding-bottom: 8px;

  color: white;

  .form-control.libelle {
    font-weight: bold;
  }

  .form-group.description {
    display: none;
  }

  .form-group.mandatory {
    display: none;
  }
}

#liste_champ{
  .show_inline {
    display: inline-block !important;
  }

  .form-group.drop_down_list{
    display: none;
  }
}
Change CSS header section construction form
Change CSS header section construction form
