Fix missing avatar while a post is being created.
Revert "Merge pull request #2125 from vikhyat/css-variables"

This reverts commit b537de3ca53614926254c352fa862b1ae3915d94, reversing
changes made to b925827e5b8a3d850f4fe90ef140acabcabdec30.
Merge pull request #2215 from vikhyat/fix-post-creation-jitter

Fix missing avatar while a post is being created