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Unfortunately, I don't think this is valid HTML. Sad! https://www.w3.org/TR/2011/WD-html5-20110525/syntax.html#:~:text=Tags%20contain%20a%20tag%20name,005A%20LA

by wilg 4y ago

Unfortunately, I don't think this is valid HTML. Sad! https://www.w3.org/TR/2011/WD-html5-20110525/syntax.html#:~:text=Tags%20contain%20a%20tag%20name,005A%20LATIN%20CAPITAL%20LETTER%20Z https://www.w3.org/TR/2011/WD-html5-20110525/syntax.html#:~:....

phendrenad2 4y ago
Must be ReactJS!
- deleted 4y ago
  [deleted]
kzrdude 4y ago
<marquee>Killjoy</marquee>
deleted 4y ago
[deleted]
jwilk 4y ago
<hat type="conspiracy">...</hat> would work better.
- _nalply 4y ago
  Did you know you can omit quotes? <hat type=conspiracy>...</hat> Source: HTML Standard Snapshot per today (November 5th 2022): https://html.spec.whatwg.org/commit-snapshots/53346e4641595aa470656dd1bcaa292e3dfcb4ef/#unquoted https://html.spec.whatwg.org/commit-snapshots/53346e4641595a... (using a snapshot here to avoid link rot)
- deleted 4y ago
  [deleted]
CharlesW 4y ago
The only problem is the underscore, I think. A <conspiracy-hat> custom element would be valid HTML.
- jwilk 4y ago
  No, only ASCII alphanumerics are allowed in HTML 5 tag names.
  - CharlesW 4y ago
    In fact, custom elements apparently must have a dash. From https://usefulangle.com/post/363/custom-element-valid-name https://usefulangle.com/post/363/custom-element-valid-name: • Name has to start with a lowercase ASCII character. It cannot have an uppercase ASCII character anywhere. UTF-8 characters, emojis, etc. are allowed as long as they are not the starting character • Name must contain a dash ("-") character. This dash character helps the browser to distinguish custom elements from regular elements.
    - jwilk 4y ago
      Indeed. This is the relevant part of the specification: https://html.spec.whatwg.org/multipage/custom-elements.html#valid-custom-element-name https://html.spec.whatwg.org/multipage/custom-elements.html#...
runlevel1 4y ago
Add a hyphen somewhere in the middle and you're good to go: https://html.spec.whatwg.org/#valid-custom-element-name https://html.spec.whatwg.org/#valid-custom-element-name

by wilg 4y ago

phendrenad2 4y ago

Must be ReactJS!

deleted 4y ago
[deleted]

kzrdude 4y ago

<marquee>Killjoy</marquee>

deleted 4y ago

[deleted]

jwilk 4y ago

<hat type="conspiracy">...</hat> would work better.

_nalply 4y ago
Did you know you can omit quotes? <hat type=conspiracy>...</hat> Source: HTML Standard Snapshot per today (November 5th 2022): https://html.spec.whatwg.org/commit-snapshots/53346e4641595aa470656dd1bcaa292e3dfcb4ef/#unquoted https://html.spec.whatwg.org/commit-snapshots/53346e4641595a... (using a snapshot here to avoid link rot)
deleted 4y ago
[deleted]

CharlesW 4y ago

The only problem is the underscore, I think. A <conspiracy-hat> custom element would be valid HTML.

jwilk 4y ago
No, only ASCII alphanumerics are allowed in HTML 5 tag names.
- CharlesW 4y ago
  In fact, custom elements apparently must have a dash. From https://usefulangle.com/post/363/custom-element-valid-name https://usefulangle.com/post/363/custom-element-valid-name: • Name has to start with a lowercase ASCII character. It cannot have an uppercase ASCII character anywhere. UTF-8 characters, emojis, etc. are allowed as long as they are not the starting character • Name must contain a dash ("-") character. This dash character helps the browser to distinguish custom elements from regular elements.
  - jwilk 4y ago
    Indeed. This is the relevant part of the specification: https://html.spec.whatwg.org/multipage/custom-elements.html#valid-custom-element-name https://html.spec.whatwg.org/multipage/custom-elements.html#...

runlevel1 4y ago

Add a hyphen somewhere in the middle and you're good to go: https://html.spec.whatwg.org/#valid-custom-element-name https://html.spec.whatwg.org/#valid-custom-element-name