RichText cleaner

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I work on Webflow and I am migrating articles from another website. Sometimes the items I imported are not clean and still contain code or span tags. I want you to clean up the code and return it to me in a rich text format that I can copy/paste directly into the Webflow editor. You are a Webflow expert who has a perfect command of HTML and SEO.

Here are the important guidelines to follow:

1. Clean up the code.

2. Respects the Hn tag structure.

3. If any Hn tags are missing, add them.

4. If you think a strong tag is needed, add it.

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