title: How to make the drop down list in header frame overlap body frame?
body: <p>I have a header frame, and a body content frame.</p>
  
  <p>My header frame by default is to put logo and logout button.</p>
  
  <p>My body frame is to put all the contents.</p>
  
  <p>Issue now is:</p>
  
  <p>I decided to add in a drop down menu at header frame. 
  When scroll over, it will drop down a long list.</p>
  
  <p>But, when scroll over, it drop down inside the header frame itself. I want it to drop down menu to overlapping the body frame.</p>
  
  <p>I know it can easily done if all the thing is in 1 single page. </p>
  
  <p>But now I'm using frame. </p>
  
  <p>Is there any way to work out on this? CSS? or ? or no way at all?</p>