title: True mobile screen emulator ?
body: <p>I have this page : </p>
  
  <p><a href="http://people.opera.com/andreasb/viewport/ex01.html" rel="nofollow noreferrer">http://people.opera.com/andreasb/viewport/ex01.html</a></p>
  
  <p>Which uses viewport for different mobile screen sizes.</p>
  
  <p>When I run this at my iphone I do see the font changes : </p>
  
  <p><img src="https://i.stack.imgur.com/zPkq1.jpg" alt="enter image description here"></p>
  
  <p>But when I use Ripple or other chrome extensions (which I found) , it doesnt show me the increased font size. only 
  screen size is changing. ( but it doesnt affect the font size )</p>
  
  <p>How can I emulate ( chrome extension) the screen size so it will show me as if I'm on real mobile ? </p>