I am able to import the package by adding custom classes in the section "add-your-classes-here". But, when I try to add the bootstrap classes like "hidden-sm", "hidden-xs", they are not actually getting added to div tags.

  • are you adding as "add-your-classes-here hidden-sm" ??? or have you removed the tag add-your-classes-here ? Commented Sep 7, 2018 at 5:13

1 Answer 1


Instead of adding class after exporting markup from Creative Exchange. You can utilize the advanced options for the grid.

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You can also create you own CSS classes from here

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You can learn more here:



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