Created attachment 302603 [details] [Image] Screenshot of Issue .
Created attachment 302697 [details] Patch
Created attachment 302698 [details] [Image] After Patch is applied
Comment on attachment 302697 [details] Patch Directions like left, right that are also CSS properties should not be flipped if used in a visual orientation where left is leftmost and right is rightmost. I see this in the screenshot for the absolute positioning offset properties and margin-left, padding-left, etc.
<rdar://problem/31393671>
Created attachment 306260 [details] Patch
Created attachment 306261 [details] [Image] After Patch is applied
(In reply to Devin Rousso from comment #6) > Created attachment 306261 [details] > [Image] After Patch is applied This is looking much better. I'll take it for a spin with Arabic localization to see if the editing makes sense. This sidebar is a bit of a grey area because some of the visual editors take CSS syntax as input which should always be LTR. Others are more direct-manipulation or wrap CSS values with UI, which is more open to RTL interpretation.
Created attachment 322021 [details] Patch
Comment on attachment 322021 [details] Patch I sent out some functional review comments via email with screenshots. When those are addressed I'll review the patch.
The Visual styles sidebar was removed in r236298 <https://webkit.org/b/189807>.