title: How to change the style of a <select>'s <optgroup> label?
body: <p>I have a simple select box with an option group in my application.</p>
  
  <pre><code>&lt;select&gt;
     &lt;optgroup label="Swedish Cars"&gt;
       &lt;option value="volvo"&gt;Volvo&lt;/option&gt;
       &lt;option value="saab"&gt;Saab&lt;/option&gt;
     &lt;/optgroup&gt;
     ----
     ----
     ----
  &lt;/select&gt;
  </code></pre>
  
  <p>When it gets displayed in browser, the option group label is displayed in bold and italic; I want it to be displayed without any of those styles.</p>