<!DOCTYPE html>
<title>CSS Conditional Test: @supports font-tech()</title>
<link rel="author" title="Jonathan Kew" href="mailto:[email protected]">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#typedef-supports-font-tech-fn">
<link rel="match" href="at-supports-001-ref.html">
<style>
div {
background: red;
height: 10px;
width: 100px;
}
/* assume all browsers support at least features-opentype and color-COLRv0 */
@supports font-tech(features-opentype) {
#test1 { background: green };
}
@supports font-tech(color-COLRv0) {
#test2 { background: green };
}
/* forms that should NOT be recognized as supported */
@supports not font-tech(features-opentype color-COLRv1) {
#test3 { background: green };
}
@supports not font-tech(features-opentype, color-COLRv0) {
#test4 { background: green };
}
@supports not font-tech(features-opentype, features-opentype) {
#test5 { background: green };
}
@supports not font-tech() {
#test6 { background: green };
}
@supports not font-tech(xyzzy) {
#test7 { background: green };
}
@supports not font-tech("features-opentype") {
#test8 { background: green };
}
@supports not font-tech(feature-opentype) {
#test9 { background: green };
}
@supports not font-tech(colors-COLRv0) {
#test10 { background: green };
}
</style>
<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<div id=test1></div>
<div id=test2></div>
<div id=test3></div>
<div id=test4></div>
<div id=test5></div>
<div id=test6></div>
<div id=test7></div>
<div id=test8></div>
<div id=test9></div>
<div id=test10></div>
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