Created attachment 411930 [details] Screenshot before patch Currently the #tab-browser portion (for example the DOM Tree of the Elements Tab) has a minimum width of 100px. With the work done in b217396, it is now even easier to find this minimum width, and this minimum width is too small in almost all cases.
Created attachment 412173 [details] Patch
Created attachment 412174 [details] Screenshot after patch
Created attachment 412175 [details] Sidebar resizing (docked bottom) after patch
Created attachment 412176 [details] Sidebar resizing (docked side) after patch
Comment on attachment 412173 [details] Patch r=me, this looks so much better than before. I have a slight concern that it's hard to make the main content area really big by resizing the window itself, but I think that will be addressed by adding a toggle for showing >1 sidebar pane.
Committed r268981: <https://trac.webkit.org/changeset/268981> All reviewed patches have been landed. Closing bug and clearing flags on attachment 412173 [details].
<rdar://problem/70684444>