GitLab

Also fixing CSS related PRESUBMIT errors:
1) removing usage of -webkit-box, which seems to have no effect
2) converting padding/margin CSS properties to use logical start/end
   instead of left/right

This is in preparation of migrating this page to JS modules.

Bug: 1028829
Change-Id: I33019772455cc870e49ebadf11b4c98650eeeb8a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1941270
Commit-Queue: Demetrios Papadopoulos <dpapad@chromium.org>
Auto-Submit: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#720627}