body {
  font-family: Arial, sans-serif;
  margin: 20px;
}

h1 {
  color: #eb0000;
  text-align: center;
}

h2 {
  color: #8c00ff;
}

p {
  line-height: 1.5;
}

a {
  color: blue;
}

img {
  display: block;
  margin: 20px auto;
  width: 500px;
}

ul {
  margin-left: 20px;
}

hr {
  border: 1px solid #000000;
}

/* Custom CSS rule: a simple highlight style */
.highlight {
  background-color: yellow;
}