How to change hyperlink color in sidebar only?

Hi,

I’m sure it is a simple answer, but can’t think of it right now.

How do I change the hyperlink colors in the sidebar? eg., body hyperlinks should be orange, but sidebar hyperlinks should be black.

Reference page: https://www.vishaldharamdas.com/8-simple-steps-to-get-started-with-digital-marketing-for-your-brick-and-mortar-business/

Thanks in advance and have a great day!

yours sincerely,

Nick

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