Plaintext with custom font?

I’m looking for a plugin that can load regular .txt files inside Obsidian with the ability to set a custom font for them.

For my use-case, I want to set a monospaced font for the text files.

As far as I know, the pre-existing txt plugins do not set its own font but instead just loads the plaintext.

If this plugin already exists, please show me the way!

You might be able to use a CSS snippet if any of those plugins adds something distinct you can target (like a class).