message: Make font size consistent for all `pre` elements.
  The change also has the effect of allowing 100 characters (`rustfmt`'s
  default) to be visible on all source views. Resolves
diff: @@ -129,6 +129,7 @@ body {
  }
  pre {
  + font-size: 0.9rem;
  overflow: auto;
  white-space: pre;
  }
  @@ -314,7 +315,6 @@ div.recent-releases-container {
  }
  pre {
  - font-size: 0.8rem;
  white-space: pre-wrap;
  }
  