<div>
   <em>Emphasized text   </em>outside of
   <strong>li   </strong>appear "normal".
   <ul>
     <li>
       <em>Emphasized text       </em>within
       <strong>li       </strong>have a different style.
     </li>   </ul>
 </div>

In style element (<style>) within head element:

li em { color: red; background-color: navy;}