/* --- Normalisierung --- */
ul, ol, li, dl, dt, dd {
  display: block;
  padding: 0;
  margin 0;
}

li {
  display: list-item;
  margin-left: 2em;
}

/* --- Elemente --- */
body {
  background-color: #DDFFDD;
  color: #000000;
  margin-left: auto;
  margin-right: auto;
}

div {
  display: block;
  width: 600px;
  margin-left: auto;
  margin-right: auto;
}