* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  padding: 20px 20px;
}

.a {
  height: 200px;
  width: 400px;
  border: 4px solid lightblue;
}

.b {
  height: 400px;
  width: 600px;
  border: 4px solid lightgreen;
}

/*# sourceMappingURL=style.css.map */