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To see all available qualifiers, see our documentation.
Writing Adblock Plus filters: https://adblockplus.org/en/filters Describes older syntax, but all things are still actual for uBlock Origin.
The same manual, extended version: https://help.eyeo.com/en/adblockplus/how-to-write-filters
uBlock Origin manual: https://github.com/gorhill/uBlock/wiki/Procedural-cosmetic-filters
List of uBlock Origin scriptlets: https://github.com/gorhill/uBlock/wiki/Resources-Library