Mastodawn

We've got another proposal out for review, this one for the JS API! We're planning to change the sourceMapIncludeSources option to clarify when and how source maps are embedded. Let us know what you think! https://github.com/sass/sass/blob/main/proposal/source-map-include-sources.md

sass/proposal/source-map-include-sources.md at main · sass/sass

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Sass Oct 11

@djenz yes, this definitely counts. thanks for the example!

Sass Oct 6

A week ago, we put out a poll asking how many Sass users wrote CSS custom properties that weren't also valid SassScript (https://front-end.social/@sass/115272830411739760). About a third of you said you did, but no one gave examples. We'd love to know the specific use-cases you have for custom properties that use syntax that wouldn't be valid in other CSS properties!

Sass (@[email protected])

In Sass today, CSS custom properties are parsed differently than other declarations. They don't allow normal SassScript—any variables and custom functions have to be wrapped in #{}. This is because the spec allows *anything* there, and it can be read from JS. But we're wondering: does anyone actually use this in practice? Remember that any value for any non-custom property is also valid SassScript. (Please share for broader reach!) [ ] I write CSS vars that aren't valid SassScript [ ] All my CSS vars are valid SassScript [ ] I don't use CSS vars/show results

Front-End Social

Sass Sep 29

Sass Sep 26, 2025

In Sass today, CSS custom properties are parsed differently than other declarations. They don't allow normal SassScript—any variables and custom functions have to be wrapped in #{}. This is because the spec allows *anything* there, and it can be read from JS. But we're wondering: does anyone actually use this in practice? Remember that any value for any non-custom property is also valid SassScript. (Please share for broader reach!)

I write CSS vars that aren't valid SassScript

24.4%

All my CSS vars are valid SassScript

46.3%

I don't use CSS vars/show results

29.3%

Poll ended at Oct 3 at 9:56pm.

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Sass Sep 27

If you write CSS vars that aren't valid SassScript, we want to know details! Please reply with an example of the sorts of variables you're writing and why.

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Sass Sep 26, 2025

If we do change the way custom properties are parsed, it will be far in the future after a full deprecation cycle to make sure anyone who's using anything weird has a chance to migrate to something compatible. The main question right now is how we parse the `result` property in CSS `@function` rules, which has the same considerations as custom properties.

Sass Sep 26, 2025

In Sass today, CSS custom properties are parsed differently than other declarations. They don't allow normal SassScript—any variables and custom functions have to be wrapped in #{}. This is because the spec allows *anything* there, and it can be read from JS. But we're wondering: does anyone actually use this in practice? Remember that any value for any non-custom property is also valid SassScript. (Please share for broader reach!)

I write CSS vars that aren't valid SassScript

24.4%

All my CSS vars are valid SassScript

46.3%

I don't use CSS vars/show results

29.3%

Poll ended at Oct 3 at 9:56pm.

Sass Sep 2, 2025

We've got another proposal out for review, and this one's meaty! It proposes adding Sass support for the new plain CSS if() function in place of Sass's old if() function syntax. Let us know what you think! https://github.com/sass/sass/blob/main/proposal/plain-css-if.md

sass/proposal/plain-css-if.md at main · sass/sass

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Sass Mar 27, 2025

We've got another proposal for people to review! This one slightly changes the logic of which function names are reserved to better match CSS semantics and un-reserve some functions that are generally safe: https://github.com/sass/sass/blob/main/proposal/function-name.md

sass/proposal/function-name.md at main · sass/sass

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Sass Mar 26, 2025

We've got another language proposal for the community to take a look at. This one proposes removing support for !default on private variables, since overriding them breaks the principle of encapsulation. Let us know what you think! https://github.com/sass/sass/blob/main/proposal/default-on-private-variables.md

sass/proposal/default-on-private-variables.md at main · sass/sass

Sass makes CSS fun! Contribute to sass/sass development by creating an account on GitHub.

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