html {
  padding: 0;
  margin: 0;
}

body {
  padding: 0;
  margin: 0;
}

.body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  position: absolute;
  background: repeating-linear-gradient(
  -45deg,
  #dbcfb1,
  #dbcfb1 20px,
  #d6c7a3 20px,
  #d6c7a3 40px
  );
}

.box {
  width: 80%;
  margin: 20%;
  border: 8px #6f8b6e;
}