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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/rendering/the-details-element/details-display.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<meta charset=UTF-8>
<title>CSS Test: default display of details and summary elements</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#the-details-and-summary-elements">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<details id="a">
<summary id="b">This is the real summary.</summary>
<p>This is the rest of the details.</p>
<summary id="c">This summary is not special.</summary>
</details>
<summary id="d">This summary is not special.</summary>
<script>
test(() => {
assert_equals(getComputedStyle(document.getElementById("a")).display, "block");
}, "default display of details element is block");
test(() => {
assert_equals(getComputedStyle(document.getElementById("b")).display, "list-item");
}, "default display of first summary child of details is list-item");
test(() => {
assert_equals(getComputedStyle(document.getElementById("c")).display, "block");
}, "default display of other summary element in details is block");
test(() => {
assert_equals(getComputedStyle(document.getElementById("d")).display, "block");
}, "default display of summary element outside details is block");
let new_styles = `
details { display: grid }
summary { display: flex }
`;
let new_style_element = document.createElement("style");
new_style_element.append(document.createTextNode(new_styles));
document.head.append(new_style_element);
test(() => {
assert_equals(getComputedStyle(document.getElementById("a")).display, "grid");
}, "display of details element can be changed");
test(() => {
assert_equals(getComputedStyle(document.getElementById("b")).display, "flex");
}, "display of first summary child of details can be changed");
test(() => {
assert_equals(getComputedStyle(document.getElementById("c")).display, "flex");
}, "display of other summary element in details can be changed");
test(() => {
assert_equals(getComputedStyle(document.getElementById("d")).display, "flex");
}, "display of summary element outside details can be changed");
</script>