title: How to make dropdown list unselectable?
body: <p>How can I make the <code>&lt;h:selectOneMenu&gt;</code> dropdown list unselectable?</p>
  
  <p>It is not like using <code>disabled</code>. I just want to make the dropdown list options unselectable and to appear with a different (inactive) style class.</p>
  
  <p>How can I achieve this? By a JSF component attribute or CSS or JavaScript?</p>