title: HTML/CSS multilevel nested lists numbering
body: <p>Is there a way to achieve the below numbering using straight HTML and CSS lists (<code>&lt;ul&gt;</code> or <code>&lt;ol&gt;</code>)?</p>
  
  <pre><code>1. Link 1
  2. Link 2
  3. Link 3
      3.1. Link 3.1
      3.2. Link 3.2
      3.3. Link 3.3
  4. Link 4
      4.1. Link 4.1
          4.1.1 Link 4.1.1
          4.1.2 Link 4.1.2
  5. Link 5
  </code></pre>
  
  <p>Thanks in advance!</p>