body {
  color: white;
  text-align: center;
  font-size: 30px;
}

.container {
  display: flex;
  align-items:center;
  justify-content: center;
}

.box {
  height: 80px;
  width: 150px;
  background-color: black;
  margin: 10px;
}

h1 {
  display: flex;
  align-items: center;
  justify-content: center;
}