title: CSS expression for "screen height - (header + footer height)"
body: <p>I have a HTML page which contains <code>&lt;header&gt;</code>, <code>&lt;section&gt;</code> and <code>&lt;footer&gt;</code>. And I want to set section min-height to <code>screen height - (header + footer height)</code>. Is that possible?</p>
  
  <pre><code>section{
      min-height: screen-height-(header + footer height)
  }
  </code></pre>