How to customize CSS?

[Pierre31415]

Greetings,
I use Typescript, all my CSS works exept for every FancyApp classes and ids.
Is there a way to fix it ? Do I miss something ?
Thx for your answer

[fancyapps]

Hi,

Sorry, but what do you mean? Can you give an example? Most of classes are hard-coded, like fancybox__content.