title: Does X-UA-Compatible "IE=EmulateIE7" work in IE10 and IE11?
body: <p>i am currently working with this header:</p>
  
  <pre><code> &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"&gt;
   &lt;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de" lang="de"&gt;
   &lt;head&gt;
   &lt;meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /&gt;
  </code></pre>
  
  <p>1) so...is the following assumption correct?</p>
  
  <p>the metatag attribute content="IE=EmulateIE7" ensures that no matter with what IE-version you look at the page the page will be rendered as if you look at it in IE7. E.g. you won't see rounded corners defined with border-radius when you look at the page in IE10 or IE9. </p>
  
  <p>2) is this following assumption also correct?</p>
  
  <p>however, as of IE11 the http-equiv="X-UA-Compatible" metatag will be obsolete so the same page will be rendered with the IE11 rendering engine and there will be rounded corners.</p>