modernizr
Version:
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
25 lines (24 loc) • 757 B
JavaScript
/*!
{
"name": "CSS Supports",
"property": "supports",
"caniuse": "css-featurequeries",
"tags": ["css"],
"builderAliases": ["css_supports"],
"notes": [{
"name": "W3C Spec (The @supports rule)",
"href": "https://dev.w3.org/csswg/css3-conditional/#at-supports"
}, {
"name": "Related Github Issue",
"href": "https://github.com/Modernizr/Modernizr/issues/648"
}, {
"name": "W3C Spec (The CSSSupportsRule interface)",
"href": "https://dev.w3.org/csswg/css3-conditional/#the-csssupportsrule-interface"
}]
}
!*/
define(['Modernizr'], function(Modernizr) {
var newSyntax = 'CSS' in window && 'supports' in window.CSS;
var oldSyntax = 'supportsCSS' in window;
Modernizr.addTest('supports', newSyntax || oldSyntax);
});