title: Displaying a menu child in drupal 7
body: <p>How to make a child menu visible in Drupal 7 ? </p>
  
  <p>The child menu appears just when I inter to the page of the parent menu. I want to make it visible whenever i put the mouse on the parent menu.</p>
  
  <p>I hope it's clear!</p>
  
  <p>thank you</p>