title: How do I force the WordPress post thumbnail to display at a fixed size?
body: <p>I want the post thumbnail image to display at a fixed size (large), no matter what. If the full size image is bigger, use the large one (and do not downscale the full one). If the full size image is smaller, use the full size, set width/height attributes of the img element and let the browser do the up-scaling. Been playing with <code>get_the_post_thumbnail</code> and conditionals for a while, but fail to get width/height attributes right without getting messy.</p>
  
  <p>Anyone willing to share a clean solution?</p>