Need to include PGN (chess game notation) in a post - feature

I am trying to embed a PGN file in a topic. This requires including CSS and Javascript in the topic. Could some one, please help me how can I use CSS and Javascript in a topic

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Need to include PGN (chess game notation) in a post - #26 by Benjamin_D - feature - Discourse Meta

Need to include PGN (chess game notation) in a post - #26 by Benjamin_D - feature - Discourse Meta