SMRTR ProgrammingJul 30, 2025LogRocket

The CSS if() function: Conditional styling will never be the same

SMRTR summary

The CSS Working Group has approved the if() function, introducing true conditional styling to stylesheets. This feature allows developers to apply different values based on specific conditions within property declarations, replacing traditional methods like media queries. The if() function supports style(), media(), and supports() query types, enabling checks for custom properties, media conditions, and feature support. This approach centralizes conditional logic, improves maintainability, and enhances responsive design capabilities. While currently limited in browser support, the if() function is set to transform conditional styling in CSS.

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