62 lines
1.5 KiB
HTML
62 lines
1.5 KiB
HTML
<!DOCTYPE HTML>
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<html class="reftest-wait">
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<title>A scroll timeline with a specified scroller for print</title>
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<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-timelines">
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<link rel="help" href="https://drafts.csswg.org/css-animations-2/#animation-timeline">
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<meta name="assert" content="CSS animation correctly updates values when using a specified scroller">
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<link rel="match" href="scroll-timeline-specified-scroller-ref.html">
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<style>
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@keyframes anim {
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from { transform: translateX(0px); }
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to { transform: translateX(100px); }
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}
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:root {
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print-color-adjust: exact;
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}
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#scroller {
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scroll-timeline: --timeline;
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overflow: scroll;
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width: 100px;
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height: 100px;
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scrollbar-width: none;
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}
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#contents {
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height: 200px;
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}
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#box {
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width: 100px;
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height: 100px;
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background-color: green;
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animation: anim 1s linear;
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animation-timeline: --timeline;
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}
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@supports not (animation-timeline:--timeline) {
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#box {
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animation-play-state: paused;
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}
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}
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</style>
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<div id="scroller">
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<div id="contents"></div>
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<div id="box"></div>
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</div>
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<script>
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window.addEventListener('load', function() {
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const scroller = document.getElementById("scroller");
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// Move the scroller to the halfway point.
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const maxScroll = scroller.scrollHeight - scroller.clientHeight;
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scroller.scrollTop = 0.5 * maxScroll;
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window.requestAnimationFrame(() => {
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document.documentElement.classList.remove("reftest-wait");
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});
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});
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</script>
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