Section:toggleable container

Build 50 on mxdvl/grid-no-abstraction
1140px
Reviewing disabled
The baseline is taller than the new snapshot (1140x478 to 1140x470).
Baseline History
Build 50642dc21
Current build. There are unaccepted changes, so build 19 is still the baseline.
Build 1990e92fa current baseline
Accepted by Max Duval.
Commenting is disabled because there's a newer build on this branch