66 lines
No EOL
1.6 KiB
HTML
66 lines
No EOL
1.6 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title> CSS Scroll Snap 2 Test: scroll-initial-target*</title>
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<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-2/#scroll-initial-target">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<style>
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:root {
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scroll-start: end end;
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}
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.spacer {
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width: 200vw;
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height: 200vh;
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}
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.box {
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position: absolute;
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width: 60vw;
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height: 60vh;
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}
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.top_left {
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top: 0px;
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left: 0px;
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background-color: red;
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}
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.center {
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top: 60vh;
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left: 60vw;
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background-color: purple;
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scroll-initial-target: nearest;
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}
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.bottom_right {
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top: 120vh;
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left: 120vw;
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background-color: yellow;
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}
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</style>
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<div class="spacer"></div>
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<div class="top_left box" id="top_left_box"></div>
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<div class="center box" id="centerbox"></div>
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<div class="bottom_right box"></div>
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<script>
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test((t) => {
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let scroller = document.scrollingElement;
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let top_left_box = document.getElementById("top_left_box");
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const expected_scroll_top = top_left_box.getBoundingClientRect().height;
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const expected_scroll_left = top_left_box.getBoundingClientRect().width;
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assert_approx_equals(scroller.scrollTop, expected_scroll_top, 1,
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"scroll-initial-target sets initial vertical scroll position");
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assert_approx_equals(scroller.scrollLeft, expected_scroll_left, 1,
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"scroll-initial-target sets initial horizontal scroll position");
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});
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</script>
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</body> |