title: WebDriver does not find element under iframe
body: <p>I'm trying to send a mail through hotmail.com. <br>
  When i'm getting to the screen of "To" and "Subject" i switched the iframe into "contentFrame" and secceed to get there.<br>
  But when i'm trying to sendkeys to the body (the body of the message), I can't find how to access this elemnt.<br>
  As i see, The body is isdine iframe named "RichText", So i have iframe inside iframe.<br>
  The body class name is "RichText" so i tried to find the element by this className without success.<br>
  I added an image with the red box which i found the element with firebug.<br>
  I'll be happy if someone can help me.<br>
  P.S - You can see the element in regular hotmail.com compose mail - body message.<br>
  Thanks,<br>
  Or.<br><img src="https://i.stack.imgur.com/AeXYC.jpg" alt="enter image description here"></p>
  
  <p>Full html page code :
  <a href="http://pastebin.com/ejM5JYyS" rel="nofollow noreferrer">http://pastebin.com/ejM5JYyS</a></p>