HTMHell Advent Calendar 2025

In 2022, I launched the HTMHell Advent Calendar, which was a great success. Since then, dozens of authors worldwide have contributed fantastic articles on security, accessibility, UX, and performance every year. This year, we're back again with twenty-four more posts.

Starting December 1st, I'll publish them one by one every day.

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  1. 1
    Top layer troubles: popover vs. dialog by Stephanie Eckles
  2. 2
    Using the Ancient Evils for Debugging by Manuel Strehl
  3. 3
    Speculation rules improvements by Barry Pollard
  4. 4
    Referencing HTML elements inside Shadow DOM by mehm8128
  5. 5
    IDREFs: What they are and how to use them by Kilian Valkhof
  6. 6
    Accessible by Design: The Role of the 'lang' Attribute by Todd Libby
  7. 7
    Controlling dialogs and popovers with the Invoker Commands API by Aubrey Sambor
  8. 8
    What's wrong with this HTML, and is it valid? by Patrick Brosset
  9. 9
    Discover Dialog by Sara Joy
  10. 10
    a11y freedom beaver by Steve Faulkner
  11. 11
    ???
  12. 12
    ???
  13. 13
    ???
  14. 14
    ???
  15. 15
    ???
  16. 16
    ???
  17. 17
    ???
  18. 18
    ???
  19. 19
    ???
  20. 20
    ???
  21. 21
    ???
  22. 22
    ???
  23. 23
    ???
  24. 24
    ???

You can check out last year's posts or the first unofficial calendar, which only links to existing articles on other sites.

HTMHell Advent calendar 2024
HTMHell Advent calendar 2023
HTMHell Advent calendar 2022
HTMHell Advent calendar 2021