The most common CSS selectors include:
1. Element selector (e.g. h1, p, div)
2. Class selector (e.g. .classname)
3. ID selector (e.g. #idname)
4. Descendant selector (e.g. ul li)
5. Child selector (e.g. ul > li)
6. Universal selector (e.g. \*)
7. Attribute selector (e.g. [href=“https://example.com”])
8. Pseudo-class selector (e.g. :hover, :active)
9. Pseudo-element selector (e.g. ::before, ::after)
