section.espace {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  height: 90vh;
  background-image:url(../img/bg.jpg);
  background-repeat:no-repeat;
  background-position:center center;
  background-size:cover;
}
section.espace h1{
  font-size: 3rem;
  text-align: center;
  color: var(--primaire);
  font-family: 'AirbnbCerealExtraBold';
  margin-top: -9rem;
  line-height: 1;
}