postcss-plugins VS csswg-drafts

the author of the most popular PostCSS plugin himself recommended the postcss-preset-env over his own creation which is cssnex, and

The example in A) won't work as the plugin can't convert the functions with variables in it. https://github.com/csstools/postcss-plugins/tree/main/plugin...

You can use this today if you're using PostCSS in your build process (which is the case if you use autoprefixer)! https://preset-env.cssdb.org/

Switching from a ready-made tool like Sass or a recommendation package like cssnext (deprecated since 2019) or PostCSS Preset Env (archived in 2022), to the modular PostCSS Preset Env plugin set we can choose a helpful and convenient set of future CSS features beyond the current stable client CSS.

To implement :has support, the css-has-pseudo polyfill can be used. This polyfill includes both a PostCSS plugin and a JS function to be used in the HTML page.

Yes, it's behind a flag and only in future versions, but it is a huge step forward. Those versions will soon be available, and we can try it locally (unfortunately, not on production without a polyfill or a plugin).

w/ postcss-preset-env(v7.8.3): convert modern CSS into something most browsers can understand, determining the polyfills you need based on your targeted browsers or runtime environments. It takes the support data that comes from MDN and Can I Use and determine from a browserlist whether those transformations are needed. It also packs Autoprefixer within and shares the list with it, so prefixes are only applied when you're going to need them given your browser support list.

There's a @ custom-media proposal (and PostCSS plugin) that can make it a lot easier to use media queries across components. Define your MQs in your global CSS, use everywhere. If you're worried about repeating MQs in your CSS from a bloat perspective, there are PostCSS plugins for that as well.

The term you are looking for is "nesting". CSS currently does not support it. But there is a draft being worked on. No browser currently supports it, though. Most CSS Pre- or Postprocessors like Sass, Less, Stylus, PostCSS support nesting.

For more background, and some detailed discussion of the opposite argument ("display: masonry" over "display:grid"+"grid-template-rows: masonry") see https://github.com/w3c/csswg-drafts/issues/9041

The tracking issue: https://github.com/w3c/csswg-drafts/issues/8659

As noted there, okHSL/HSV keeps the perceptual uniformity by removing some peaks beyond the geometric limit of HSL/HSV, and it is unclear whether it is what users do expect or not.

The idea is that you should be able to set accent color via accent-color CSS property. It is discussed that there should be access to the color value of this property, e.g. via AccentColor or AccentColorText.

What do you mean by "official documentation"? The specification [1]? MDN [2]?

[1] https://drafts.csswg.org/

[2] https://developer.mozilla.org/en-US/docs/Web/CSS

The former is not meant as a learning resource for new web devs and the latter usually has information about the "baseline" support ond browser compatibility tables.

The link corresponding to the actual submission title (“CSS WG resolved to officially work on native custom functions and mixins”):

https://github.com/w3c/csswg-drafts/issues/9350#issuecomment...

> RESOLVED: Start ED of css-mixins for CSS Custom Functions and Mixins

Recently I was reading the Learn CSS the pedantic way book and the definition for inline boxes did not match the way that anonymous block boxes were generated when an inline-level element had a block-level element as its child. So I went looking elsewhere for a more appropriate definition for that case and found this issue on standards: https://github.com/w3c/csswg-drafts/issues/1477 It was really interesting to know that I was not the only one confused. My question was: Does the inline-box generated by the inline-level element contains the box generated by the block-level child or there wasn't an inline-box that was a parent of them all but there were 2 siblings inline-level boxes of the block-level box that were wrapped in another anonymous block boxes? Reading that issue I got to know the concept of fragments, which I did not know browsers had. But the issue seems to suggest that the box tree for this case should have the inline-box as being a parent of the block-box. Which led me to another question, in that case, if I apply a border to the parent inline-level element, shouldn't it apply to the overall box that is generated (it does not)? The answer is that borders between block-boxes and inline-level boxes should not intersect but that is really difficult to derive from reading the standards alone. Anyway it was headache-inducing trying to learn the box-model pedantically :)

With all the recent CSS improvements I still miss the possibility to have working transition to "height:auto". The issue [1] on csswg-drafts is the most upvoted one. At least we can now use css grid and track sizes transitions, but it's far from intuitive, transition for "height:auto" should just work.

[1]: https://github.com/w3c/csswg-drafts/issues/626

Masonry isn’t ready to be shipped as there are still quite a few open spec issues [^1] that need to be resolved first.

[^1]: https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3...

the irc log is here: https://github.com/w3c/csswg-drafts/issues/7542#issuecomment...

i had the same reaction, it seems like a very weird syntax. but after reading the discussion i get it: you're telling a form field to behave like a normal html element, instead of behaving like a form field.