title: Set a background color on the HTML <area> element?
body: <p>Is there any way to set a background color for the HTML <code>&lt;area&gt;</code> element? I'm creating an image map where certain sections of the map will pop up a tooltip when you mouse over them, and I thought it would be cool (and convenient) if I could set a background color for the <code>&lt;area&gt;</code> elements so you could see where they were located over the image.</p>
  
  <p>I've tried both background-color and border, and neither have any effect - the <code>&lt;area&gt;</code> elements remain "invisible." I'm assuming this is because <code>&lt;area&gt;</code> is a self-closing tag and so it doesn't actually have any dimensions? But forcing a height and width didn't help, either.</p>