72 lines
1.9 KiB
HTML
72 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<meta charset="UTF-8">
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<title>CSS Conditional Test: Unknown Functional Notation as False in @supports</title>
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<meta name="assert"
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content="Test passes if unknown but grammatical functional notations are treated as false in @supports.">
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<link rel="help" href="https://www.w3.org/TR/css3-conditional/#at-supports">
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<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
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<link rel="match" href="at-supports-001-ref.html">
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<style>
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div {
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background: green;
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height: 10px;
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width: 100px;
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}
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div {
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background: red;
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}
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@supports not unknown() {
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.test1.bare { background: green; }
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}
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@supports (not (unknown())) {
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.test1.wrapped { background: green; }
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}
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@supports not unknown(with stuff) {
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.test2.bare { background: green; }
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}
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@supports (not (unknown(with stuff))) {
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.test2.wrapped { background: green; }
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}
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@supports not unknown(!@#% { ... } more() @stuff [ ]) {
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.test3.bare { background: green; }
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}
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@supports (not (unknown(!@#% { ... } more() @stuff [ ]))) {
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.test3.wrapped { background: green; }
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}
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.test4, .test5 { background: green; }
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@supports unknown() {
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.test4.bare { background: red; }
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}
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@supports (unknown()) {
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.test4.wrapped { background: red; }
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}
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@supports unknown(with stuff) {
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.test5.bare { background: red; }
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}
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@supports (unknown(with stuff)) {
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.test5.wrapped { background: red; }
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}
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</style>
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<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
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<div class="test1 bare"></div>
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<div class="test2 bare"></div>
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<div class="test3 bare"></div>
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<div class="test4 bare"></div>
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<div class="test5 bare"></div>
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<div class="test1 wrapped"></div>
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<div class="test2 wrapped"></div>
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<div class="test3 wrapped"></div>
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<div class="test4 wrapped"></div>
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<div class="test5 wrapped"></div>
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