.container {
  width: 1000px;
  height: 1000px;
  border: 1px solid #000;
  margin: 0 auto;
  margin-top: 10px;
  padding: 10px;
}

.box1 {
  width: 200px;
  height: 200px;
  margin: -10px 0px 10px 0px;
  margin-top: -10px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url("https://images.unsplash.com/photo-1531315630201-bb15abeb1653?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8NXx8YmFja2dyb3VuZHxlbnwwfHwwfHw%3D&auto=format&fit=crop&w=500&q=60");
  background-attachment: fixed;
  color: white;
  padding: 5px;
  overflow: scroll;
  margin: 0 auto;
  font-size: 36px;
}

.box2 {
  width: 200px;
  height: 200px;
  margin: -10px 0px 10px 0px;
  margin-top: -10px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url("https://images.unsplash.com/photo-1531315630201-bb15abeb1653?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8NXx8YmFja2dyb3VuZHxlbnwwfHwwfHw%3D&auto=format&fit=crop&w=500&q=60");
  background-attachment: local;
  color: white;
  padding: 5px;
  overflow: scroll;
  margin: 0 auto;
  font-size: 36px;
}

.box3 {
  width: 200px;
  height: 200px;
  margin: -10px 0px 10px 0px;
  margin-top: -10px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url("https://images.unsplash.com/photo-1531315630201-bb15abeb1653?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8NXx8YmFja2dyb3VuZHxlbnwwfHwwfHw%3D&auto=format&fit=crop&w=500&q=60");
  background-attachment: scroll;
  color: white;
  padding: 5px;
  overflow: scroll;
  margin: 0 auto;
  font-size: 36px;
}

.box4 {
  width: 200px;
  height: 200px;
  margin: -10px 0px 10px 0px;
  margin-top: -10px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url("https://cdn-icons-png.flaticon.com/512/2107/2107957.png"), url("https://images.unsplash.com/photo-1531315630201-bb15abeb1653?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8NXx8YmFja2dyb3VuZHxlbnwwfHwwfHw%3D&auto=format&fit=crop&w=500&q=60");
  background-attachment: scroll, local;
  color: white;
  padding: 5px;
  overflow: scroll;
  margin: 0 auto;
  font-size: 36px;
}