Sass Blog

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  • Request for Comments: Indented Syntax Improvements

    Posted 3 December 2024 by James Stuckey Weber

    For users of the indented syntax (.sass), there has been a long standing request for the ability to have line breaks that don’t end a statement. Certain CSS syntaxes like grid-template and @font-face src declarations are long, and line breaks can greatly increase the readability of the styles.

    There have been many suggestions, several attempts, and numerous workarounds to address this pain point. We are proposing several new syntax options in the indented syntax that add considerable flexibility and look to address this as part of the language.

    Multiline statementsMultiline statements permalink

    We propose allowing statements in the indented syntax to span multiple lines, as long as line breaks occur in places where the statement can’t end.

    A common way of using this syntax will be wrapping lists with line breaks in parentheses. This allows for a grid-template declaration on multiple lines.

    .grid
      display: grid
      grid-template: (
        "header" min-content
        "main" 1fr
      )

    As usual, these parentheses will not be included in the output.

    .grid {...
  • `@import` is Deprecated

    Posted 17 October 2024 by Jennifer Thakar

    Back in 2019, we released the Sass module system, adding new @use and @forward rules to the language that were designed to replace @import and make stylesheets more maintainable and less error-prone. We can now announce that @import is officially deprecated as of Dart Sass 1.80.0.

    The module system ensures that it’s easy for both developers and tooling to determine where a given Sass member is defined, adds namespacing to prevent the need to manually add long, awkward namespaces to names, and allows library authors to ensure their private helpers can’t be accessed by downstream users. Additionally, since each module is only ever loaded once, depending on the same stylesheet multiple times no longer results in duplicated CSS.

    With 4.5 years since we released the module system and more than a year since we passed the 80% Dart Sass usage share threshold we set for starting this deprecation, we feel comfortable making this move. However, we understand that this is a big change to the language and not all…

  • Sass color spaces & wide gamut colors

    Posted 11 September 2024 by Miriam Suzanne

    Wide gamut colors are coming to Sass!

    I should clarify. Wide gamut CSS color formats like oklch(…) and color(display-p3 …) have been available in all major browsers since May, 2023. But even before that, these new color formats were allowed in Sass. This is one of my favorite features of Sass: most new CSS just works, without any need for “official” support or updates. When Sass encounters unknown CSS, it passes that code along to the browser. Not everything needs to be pre-processed.

    Often, that’s all we need. When Cascade Layers and Container Queries rolled out in browsers, there was nothing more for Sass to do. But the new CSS color formats are a bit different. Since colors are a first-class data type in Sass, we don’t always want to pass them along as-is. We often want to manipulate and manage colors before they go to the browser.

    Already know all about color spaces? Skip ahead to the new Sass features!

    The color format trade-offThe color…

  • Node Sass is end-of-life

    Posted 24 July 2024 by Natalie Weizenbaum

    The time has finally come to retire Node Sass. This Node.js wrapper for LibSass was the first official Sass compiler available in the JavaScript ecosystem and was a huge part of Sass growing beyond the scope of the Ruby community where it originated, but it hasn’t received a new release in a year and a half and the most recent set of maintainers no longer have the bandwidth to continue updating it.

    The npm package has been marked as deprecated, and the GitHub repository has been archived to mitigate confusion about which Sass repositories are still being developed. If you’re still using Node Sass, we strongly recommend you take this opportunity to migrate to the primary implementation, Dart Sass, instead.

    The LibSass implementation that Node Sass used remains deprecated but not yet end-of-life, as its maintainer Marcel Greter continues to make occasional fixes. However, there is no longer an officially-supported way to use this implementation from Node.js.

    I want to take this opportunity to thank everyone who used Node…

  • Announcing `pkg:` Importers

    Posted 16 February 2024 by Natalie Weizenbaum

    Several months ago, we asked for feedback on a proposal for a new standard for importers that could load packages from various different package managers using the shared pkg: scheme, as well as a built-in pkg: importer that supports Node.js’s module resolution algorithm. Today, I’m excited to announce that this feature has shipped in Dart Sass 1.71.0!

    No longer will you have to manually add node_modules to your loadPaths option and worry about whether nested packages will work at all. No longer will you need to add ~s to your URLs and give up all portability. Now you can just pass importers: [new NodePackageImporter()] and write @use 'pkg:library' and it’ll work just how you want out of the box.

    What is a pkg: importer?What is a pkg: importer? permalink

    Think of a pkg: importer like a specification that anyone can implement by writing a custom importer that follows a few rules. We’ve implemented one for the Node.js module algorithm, but you could implement one that loads Sass…

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