User-generated content helper

[dz4k]

.ugc {
  white-space: pre-wrap;
  overflow-wrap: break-word;
  unicode-bidi: isolate;
}

Disables whitespace collapsing, prevents overflows and avoids bidirectional text bugs

[geoffrey-eisenbarth]

Should this target 1.3 or 2.0? I'm fine with 1.3 as long as you document it. :)