.ma-class-fond-color {
  background-color: #c0c0c0; /* Gris souris */
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  overflow: hidden;
  padding: 20px;
  margin-bottom: 20px;
  margin-top: 5px;
}