title: Safari leaves a space on the right side with 100% width grid
body: <p>I'm trying to make my own grid which does fit al my needs but I can't find a way to make it the full width at Safari (Mac &amp; iOS). It works nicely in other browsers (Chrome, Firefox, IE10) but in Safari and Safari mobile it leaves a space on the right side.</p>
  
  <p>Are there any solutions for this? I'm a pixel perfectionist so this frustrates me so much.</p>
  
  <p>Image preview: </p>
  
  <p><img src="https://i.stack.imgur.com/kuRMh.gif" alt="enter image description here"></p>
  
  <p>Demo: <a href="http://codepen.io/PatrickVerwoerd/pen/wImcu" rel="nofollow noreferrer">http://codepen.io/PatrickVerwoerd/pen/wImcu</a></p>