fix: remove warnings for :first-child and innerRef#274

Merged

jlengstorf merged 2 commits intogatsbyjs:masterfrom Jared-Dev:resolve_emotion_deprecation_warnings

May 17, 2019

+86-101

Commits on May 16, 2019

Fixes some complaining done by the libraries.
Jared-Dev
committed

Commits on May 17, 2019

Merge branch 'master' into resolve_emotion_deprecation_warnings
jlengstorf
authored