Can You Extend Selectors from Within Media Queries in Sass?

Extending Selectors from Within Media Queries: Understanding the Limitations

Extending selectors from within media queries in Sass can be a challenging task. Understanding the underlying limitations is crucial to avoid frustrating errors.

The Error and Root Cause

When attempting to extend an outer selector from within a media query, Sass throws an error: "You may not @extend an outer selector from within @media. You may only @extend selectors within the same directive."

This error stems from Sass's inability to compose the selector for the outer class. Sass cannot extend selectors across media queries.

Workarounds and Solutions

While it's impossible to extend selectors directly from within media queries, workarounds exist:

• Use Mixins: Create a mixin and an extend class to reuse the desired styles inside and outside of media queries.
• Extend Selector from Outside Media Query: Extend the selector from outside the media query and use it within the media query.
• Alternative Syntax (Experimental): Sass allows experimental features such as the @extend directive within media queries. However, it's recommended to use this cautiously, as it may not be supported in future versions.

Ongoing Discussion and Future Updates

The Sass community acknowledges the need for this functionality. Discussions are ongoing to explore possible solutions and syntax options. It's advisable to track updates on the GitHub issues linked below:

• [GitHub Issue 1050: @extend Inner Selector Nested in @media](https://github.com/sass/sass/issues/1050)
• [GitHub Issue 456: Nested @media queries](https://github.com/sass/sass/issues/456)

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