title: Is it valid to have the style on an element have an inherit value in the font family for when the font is missing?
body: <p>If I have a page that this HTML </p>
  
  <pre><code>&lt;body style="font-family:Helvetica"&gt;
      &lt;span style="font-family:Segue"&gt;Hello World&lt;/span&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>Is it valid to set the font family of the span to <code>Segue, inherit</code> to allow it to inherit the parent font if the first font listed is unavailable on the system?</p>
  
  <pre><code>&lt;body style="font-family:Helvetica"&gt;
      &lt;span style="font-family:Segue, inherit"&gt;Hello World&lt;/span&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>It seems to work in the browser (Firefox) but Firefox's own debug tools are saying it's invalid. </p>
  
  <p>In other words, is it OK to write <code>font-family: AnyFont, inherit</code>? </p>
  
  <p><strong>Update:</strong><br>
  Using <code>inherit</code> does NOT work. </p>
  
  <p>The question may now be, how to get a span to inherit the font when the font is not available. </p>