Downloaded from MASTER:
https://github.com/readium/readium-css/tree/master
...well, more specifically, this PR: https://github.com/readium/readium-css/pull/80

...at commit hash:
1c92824bdaa7ee37b1ce912336bf45a4c9729cb5
=>
https://github.com/readium/readium-css/commit/1c92824bdaa7ee37b1ce912336bf45a4c9729cb5
https://github.com/readium/readium-css/commits/1c92824bdaa7ee37b1ce912336bf45a4c9729cb5
https://github.com/readium/readium-css/tree/1c92824bdaa7ee37b1ce912336bf45a4c9729cb5

Diff with current DEVELOP:
https://github.com/readium/readium-css/compare/develop...1c92824bdaa7ee37b1ce912336bf45a4c9729cb5

Diff with current MASTER:
https://github.com/readium/readium-css/compare/1c92824bdaa7ee37b1ce912336bf45a4c9729cb5...master