#jour-nuit {
  /* position:absolute; */
  width:3rem;
  height:auto;
  /* top:95vh;
  left:1rem; */
  color:var(--color-link);
  background-color:var(--color-link-inverted);
  border-radius: 50%;
  z-index: 99999;
  margin-top: 5rem;
  margin-bottom: 5rem;
}
/* @media  screen and (max-width: 1000px) {
  #jour-nuit {
    width:2rem;
    left:0rem;
  }
} */