CSSImportRule: supportsText property
Baseline 2024
Newly available
Since May 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The read-only supportsText property of the CSSImportRule interface returns the supports condition specified by the @import at-rule.
Value
A string, or null.
Examples
The document's single stylesheet contains three @import rules. The first declaration imports a stylesheet if display: flex is supported. The second declaration imports a stylesheet if the :has selector is supported. The third declaration imports a stylesheet without a supports condition.
The supportsText property returns the import conditions associated with the at-rule.
css
@import "style1.css" supports(display: flex);
@import "style2.css" supports(selector(p:has(a)));
@import "style3.css";
js
const myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].supportsText); // returns `"display: flex"`
console.log(myRules[1].supportsText); // returns `"selector(p:has(a))"`
console.log(myRules[2].supportsText); // returns `null`
Specifications
| Specification |
|---|
| CSS Object Model (CSSOM) # dom-cssimportrule-supportstext |