Custom html tags?

Question

So are custom HTML tags a thing? I occasionally mispell tags in html, like the textarea tag.
Yet it still creates a closing tag
Example:
<tdxtarea></tdxtarea>

This got me thinking. Are custom tags supported?

Sololearn seems to style them just fine. But would the browser?

It's not at all usefull, but I was just wondering xD

Answer 1

Haha nice one, but no, it's not possible. At least not unless you make a web browser that can read those tags. :) Cheers.

Answer 2

https://www.sololearn.com/discuss/751384/?ref=app

Answer 3

You can make your custom tag on html
I often use my own custom tag
https://code.sololearn.com/WbOhK83Cgz40/?ref=app

Answer 4

Ok nevermind.
they aren't working in sololearn anymore.
Must've been a glitch that they fixed.
They won't style anymore

carry on xD

Answer 5

No custom tags are allowed in HTML. Everything is just predefined here.

Answer 6

Custom tag
https://code.sololearn.com/WECj93AS7hlx/?ref=app