Hi, Marcin,
Thanks for using Nicepage! Clarify please, do you want to edit Nicepages themes in this plugin or something else? We did not test Nicepage with CSS Hero. But you can try using Nicepage and CSS Hero on your own but please note that it is advisable to edit Nicepage themes in our software for avoiding possible problems.
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Sincerely,
Pavel C.
Nicepage Support Team
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Last edited 17 March 2021 by Support Team