<div id="main">
  <ul>
    <li>List item 1</li>
    <li>List item 2</li>
    <li>List item 3</li>
  </ul>
  <p>first paragraph</p>
  <p>second paragraph</p>
  <p>third paragraph</p>
  <ul>
    <li>List item 1</li>
    <li>List item 2</li>
    <li>List item 3</li>
  </ul>
  <p>fourth paragraph</p>
  <p>fifth paragraph</p>
  <p>sixth paragraph</p>
</div>

ul + p {
  color: red;
}