The list of features:

• auto field-sizing
• container queries
• <dialog>
• exclusive accordions
• :focus-visible
• :has
• hidden=until-found
• high-definition colors
• <hr> in select
• inputmode
• min(), max(), clamp()
• relative colors
• responsive videos
• scroll behavior
• scroll snap
• text-wrap: balance
• :user-valid and :user-invalid
• View Transitions API