honestbleeps/Reddit-Enhancement-Suite — pull request #1688 by markekraus (2014-10-19 22:31:10+00:00)
Title: Bug Fix: fallback image alignment for video expandos

Video expandos for imgur, gifyoutube, and possibly others cause alignment issues when a relevant mp4 or webm video is not found and instead it falls back to the original image. since the tage in the fallback logic was missing class definition, some browsers would shove the image to the right. Setting the RESImage class for the fallback image ensures the tag is identical to the tags for normal images.

reported: https://www.reddit.com/r/RESissues/comments/2jmzuc/bug_inline_gifs_jump_over_after_they_load/