title: IE11 CSS opacity transition for table rows not working
body: <p><a href="http://jsbin.com/qusewehobi" rel="nofollow">http://jsbin.com/qusewehobi</a></p>
  
  <p>In the example above, clicking the button adds and removes the <em>selectedRow</em> class of a div and two table rows. The opacity should change from 1.0 to 0.25 smoothly due to a transition declaration on the common class of those elements.</p>
  
  <p>This works in Chrome 43.0.2357.130 (64-bit), but not in IE 11.0.9600 - only the DIV element changes. Remove the transition declaration and the opacity changes reliably.</p>
  
  <p>Am I missing some subtlety of CSS or is this a bug?</p>