Many frontend developers worked in my website. But Now Iam going to move my website to Production. It is very difficult to find unused css on my website. Cause, many front end developers worked in my website and some of them are not working here. But Iam sure that unused CSS is there in my webiste and recently my website design was updated. So What Iam asking is, Is these usused CSS affect my SEO Performance?

unused css  website performance  seo