[touch-events] Add reference for CSS pixels (#39)

Fixes https://github.com/w3c/touch-events/issues/32
You can view, comment on, or merge this pull request online at:

  https://github.com/w3c/touch-events/pull/39

-- Commit Summary --

  * Add reference for CSS pixels

-- File Changes --

    M index.html (4)

-- Patch Links --

https://github.com/w3c/touch-events/pull/39.patch
https://github.com/w3c/touch-events/pull/39.diff

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/touch-events/pull/39