supported bootstrap grid prefix in Layout/Column, ex. col-sm-6 col-lg-12 col-xs-3
supported bootstrap grid prefix in Layout/Column, ex. col-sm-6 col-lg-12 col-xs-3

never615/laravel-admin,qq447665722/laravel-admin,z-song/laravel-admin,qq447665722/laravel-admin,never615/laravel-admin,z-song/laravel-admin,qq447665722/laravel-admin