title: Floated thumbnail gallery, different sizes, how to handle?
body: <p>When simply doing float:left to all thumbnails of the same size, a gallery looks great. But when different size thumbnails come in to play, that is no longer the case. </p>
  
  <p>What is the best way to handle different size thumbnails? Do I need to use tables instead? </p>
  
  <p><img src="https://i.imgur.com/EO9YO.png" alt="example"></p>