title: HTML/CSS: Border around all images
body: <p>I have this:
  <a href="http://jsbin.com/oqari5/edit" rel="nofollow">http://jsbin.com/oqari5/edit</a></p>
  
  <p>How can I have a border around <em>all</em> the images? With this I mean all images are inside 1 border.
   I tried, but it gets bigger than it should, why is this?</p>