.jaune{background: #ffc723;}

.superposition {
  display: none;
  border: 2px solid black;
  position: fixed;
  top: 120px ;
  left: 150px;
  width: 200px;
  height: 300px;
  overflow-y: scroll;
  scrollbar-color: rebeccapurple;
  scrollbar-width: large;
}

.HautDePage {
  position: fixed;
  z-index: 50;
  right: 30px;
  bottom: 100px;
  padding: 13px 16px 16px;
  cursor: pointer;
  display: none;
  border-radius: 50%;
  transition: background 0.3s ease-out;
}