Add class valid#110

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bodkia22 wants to merge 3 commits intodevfrom

add_class_valid

Commits on Apr 3, 2020

Merge branch 'dev' into fix_sidebar_as_headmaster
Bohdan Borodulin
committed

Commits on Apr 4, 2020

add validation to class
Bohdan Borodulin
committed
Merge branch 'dev' into add_class_valid
Bohdan Borodulin
committed