Nested CSS Version of the Question

With slightly darker background in first `div`

This is the navigation menu

<div id="nav" class="column">
  <div class="main">
    <p>This is the navigation menu</p>
  </div>
</div>

Welcome to the Swedish Chef Website bork bork bork

<div id="content" class="column">
  <div class="main">
    <p>
       Welcome to the
       Swedish Chef Website
       <span class="bork" >bork bork bork</span>
    </p>
  </div>
</div>

Back to the original questions i – iii or
Forward to the nested CSS version of question iv, or to altered XHTML version of questions i – iii.

Nested CSS Version of the Question

With slightly darker background in first div

With slightly darker background in first `div`