gt;</code> <small>&mdash; horizontal rule (divider)</small></li>
          <li><code>&lt;main&gt;</code> <small>&mdash; main content area</small></li>
          <li><code>&lt;mark&gt;</code> <small>&mdash; text highlighting</small></li>
          <li>
            <code>&lt;nav&gt;</code> <small>&mdash; top navigation</small>
            <ul>
              <li><code>&lt;nav&gt;&lt;ul&gt;</code> <small>&mdash; nav links container</small></li>
              <li><code>&lt;nav&gt;&lt;ul&gt;&lt;li&gt;</code> <sma