.item {
  background:#00ffba;
  padding:30px;
  margin:0 30px 30px;
  text-align:center;
}

/*
  = = = = = = = = = =
  Vous pouvez supprimer la suite du code
*/

body {
  height:3000px;
}

#header {
  height:25vh;
  padding: 10px 30px 30px 30px;
  margin: 30px;
  border: solid 8px black;
  box-shadow: 16px 16px 0 #ff0087;
}