CfC: Pull request 189 (Adding PX comment to G18 and G145)

CALL FOR CONSENSUS – ends Thursday June 9 at 1:40pm Boston time.

This is a follow-on to an accepted change in pull request 188. Techniques G18 and G145 also needed to be changed in response to the 188 changes, and Alistair has proposed the changes. The item was surveyed, discussed on the WG call, and approved (http://www.w3.org/2016/06/07-wai-wcag-minutes.html#item0<http://www.w3.org/2016/06/07-wai-wcag-minutes.html#item04>5).

Please review the changes in the pull request:
https://github.com/w3c/wcag/pull/189/files?diff=split<https://github.com/w3c/wcag/pull/193/files?diff=split>

If you have concerns about this proposed consensus position that have not been discussed already and feel that those concerns result in you “not being able to live with” this position, please let the group know before the CfC deadline.