title: Appearance change after refresh
body: <p>The css and the appearance  is OK on the first time I open the page (after cleaning the cache). After refresh, a part of page change, (the padding  direction of a div). Another refresh does the same. 
  The css itself doesn't change but the appearance of the div does. </p>
  
  <p>If I refresh the page when the developer tools is open, the appearance doesn't change and the page is like it suppose to be. </p>
  
  <p>Any idea why does it happen? 
  Thank you! </p>