title: Is possible create map html area in percentage?
body: <p>I need to create something like this:</p>
  
  <p><a href="http://www.mrporter.com/journal/journal_issue71/2#2" rel="noreferrer">http://www.mrporter.com/journal/journal_issue71/2#2</a></p>
  
  <p>where every product in my big image is associated with a tooltip which appears on mouse hover.
  But I need this to work with <strong>fullscreen images</strong>. </p>
  
  <p>The first solution I thought (as the example above) is the <strong>map html</strong> solution where each  fill up exactly the boundaries of my products. 
  The problem is that I <strong>can't</strong> indicate <strong>precise values</strong> for my  because my image size depends on window screen. </p>
  
  <p>The best solution would be the possibility to set <strong>percentage values</strong> for my area. 
  Is this possible? Any other suggestions ?</p>