Imported mdplayer updates + Permalink on each comment (using AnnotationsList and Mediafragment) + view "iframe_hash" that forwards the hash to the iframe to test that the hash jump works properly

// Opacity

.opacity(@opacity) {
  opacity: @opacity;
  // IE8 filter
  @opacity-ie: (@opacity * 100);
  filter: ~"alpha(opacity=@{opacity-ie})";
}