unarist 21c2bc119c Clean column collapsible (#3931)
* Remove unused column_collapsable.js
* Remove old styles
* Extract `> div`  style to independent class
2017-06-24 23:18:11 +02:00
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2017-06-24 23:18:11 +02:00
2017-06-24 23:18:11 +02:00