title: Is this an IE11 Radio Button rendering bug (they look like googly eyes)?
body: <p>I'm working on a website that has a handful of radio buttons.  In most browsers everything looks fine, but in IE11 some of the radio buttons look like googly eyes.  Now, is this a bug in IE11 or am I doing something wrong?</p>
  
  <p>Edit: screen shot of the real website:</p>
  
  <p><img src="https://i.stack.imgur.com/jOQHF.png" alt="enter image description here"></p>
  
  <p>Here's an example (try it in IE11 to see the effect): <a href="http://jsfiddle.net/TjZA5/" rel="nofollow noreferrer">http://jsfiddle.net/TjZA5/</a></p>
  
  <p>Here's a zoomed screen shot from my browser (IE11 on Windows 7):
  <img src="https://i.stack.imgur.com/Tk749.png" alt="enter image description here"></p>
  
  <p>You can clearly see the different spacing between the centre discs and the outer circles.  The HTML is identical and valid (lots of <code>&lt;input type="radio" checked="checked"&gt;</code> elements) and so is the CSS (just a little margin to make the effect more obvious).  I'm wondering if it's a rounding error in the IE rendering code?</p>
  
  <p>Update: I submitted this issue as a feedback item to Microsoft Connect (<a href="http://connect.microsoft.com/IE/feedback/details/814911/radio-buttons-look-like-googly-eyes-in-ie11" rel="nofollow noreferrer">http://connect.microsoft.com/IE/feedback/details/814911/radio-buttons-look-like-googly-eyes-in-ie11</a>) and got a response saying that it's an optical illusion.  I don't think it is, so I provided some more examples.  I'm more convinced now that it's a bug in IE, but I'll have to wait and see.</p>
  
  <p><strong>Update re Edge browser in Windows 10:</strong></p>
  
  <p>I noticed that this issue persists in Microsoft's latest browser, Edge (which comes with Windows 10):</p>
  
  <p><a href="https://i.stack.imgur.com/p3U2U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/p3U2U.png" alt="Googly Eyes in Edge"></a></p>
  
  <p>The Microsoft Connect issues hasn't been updated, so I guess we're stuck with googly eyed radio buttons for now.</p>
  
  <p><strong>Update: Microsoft Connect Issue closed as "Won't Fix"</strong></p>
  
  <p>I've created a new issue on developer.microsoft.com: <a href="https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/7114234/" rel="nofollow noreferrer">https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/7114234/</a> in the hope that they'll fix it one day.</p>
  
  <p><strong>Update: Microsoft have updated the issue saying it's fixed!</strong></p>
  
  <p><a href="https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/8516392/" rel="nofollow noreferrer">https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/8516392/</a></p>
  
  <p>I haven't had a chance to test this on a new build of Windows 10 yet, but will do asap.</p>