message: Don't break spills over multiple lines, ellipsis them at max-1-line
diff: }
  a.mx_Pill {
  - word-break: break-all;
  - display: inline;
  + text-overflow: ellipsis;
  + white-space: nowrap;
  + overflow: hidden;
  + max-width: 100%;
  }
  /* More specific to override `.markdown-body a` text-decoration */
  