Table Column Configuration:Fractional Width Column

Build 5420 on update-table-row-styling
1200px
Reviewing disabled
Baseline History
Build 54206b45c62
Current build. There are unaccepted changes, so build 5038 is still the baseline.
Build 50387399f58 current baseline
Accepted by Jonathan Meyer.
Commenting is disabled because there's a newer build on this branch