title: HTML img tag: title attribute vs. alt attribute?
body: <p>I was browsing <a href="https://www.amazon.com" rel="noreferrer">Amazon</a> and I noticed that when searching "<a href="http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Daps&amp;field-keywords=1TB" rel="noreferrer">1TB</a>" if you hover the mouse cursor over the stars rating  image, you only see the score if using IE.  If you are using another browser then the score won't show.</p>
  
  <p>A rating of 3.8 and a rating of 4.2 both show up as 4 stars. Of course a 3.8 stars vs 4.2 stars (76% vs 84% score) could make a difference!</p>
  
  <p>This is because the standard way of displaying <code>alt</code> text is only when the user turns off graphics or when the browser is "read out" (e.g browser for users who are visually  impaired).  IE however, shows it on hover.</p>
  
  <p>So I think if Amazon is to show it regardless of the user's browser, then <code>title</code> should be used in addition to <code>alt</code>. Would you agree?</p>