Frontend

The CSS `attr()` function will soon be upgraded to read values directly from HTML attributes using the CSSOM type system.

Class names, inline `style` attributes, inherited CSS variables and discrete `data-*` attribute values will no longer be your only entry points for specifying CSS style variants in your HTML templates.

The CSS `attr()` function will soon be upgraded to read values directly from HTML attributes using the CSSOM type system.

Class names, inline `style` attributes, inherited CSS variables and discrete `data-*` attribute values will no longer be your only entry points for specifying CSS style variants in your HTML templates.

https://youtu.be/WcNWf6edIcc

https://developer.chrome.com/blog/advanced-attr

https://caniuse.com/css3-attr

https://developer.mozilla.org/en-US/docs/Web/CSS/attr

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CSSWG spec:

https://drafts.csswg.org/css-values-5/#attr-notation