content-visibility-animation-becomes-visible-ref.html

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<!DOCTYPE html>

<html>

<title>Test that making a content-visibility: hidden subtree visible restarts animations in it</title>

<link rel="author" title="Rob Buis" href="mailto:rbuis@igalia.com">

<link rel="help" href="https://drafts.csswg.org/css-contain-2/">

<style>

#target {

  position: relative;

  background: green;

  height: 100px;

  width: 100px;

  left: 100px;

</style>

<body>

  <div id="target"</div>

</body>