body {
  background-color: black;
  color: white;
  font-family: Arial, sans-serif;
  text-align: center;
  max-width: 700px;
  margin: 40px auto;
}

/* center the moon image */
img {
  display: block;
  margin: 20px auto;
}

/* fix list alignment */
ul {
  list-style-position: inside;
  padding: 0;
}

.highlight-box {
  border: 1px solid white;
  padding: 20px;
  margin: 40px auto;
  background-color: #FFD700;
}