CSS was fairly simple, as Shadow DOM already does heavy lifting here. Every shadow DOM would sit in container element that would have overflow: hidden, and a fairly new property called contain. It would be set to strict, which prevents any escapes and hopefully helps with performance.
据了解，在“2025中沙文化年”框架下，两国共同举办约60场丰富多彩的文化活动，有力增进双方文化交流和相互了解。其间，中国出版机构还携千余册图书及文创产品参加利雅得国际书展，《卡门》歌剧、“天地同和——中国古代乐器展”、国家大剧院合唱团音乐会等形式多样的活动轮番举行，为沙特民众打开了解中国的新窗口。，这一点在体育直播中也有详细论述
。体育直播是该领域的重要参考
Why has the four-pane browser survived so long without being replaced by newer (possibly better) metaphors?，详情可参考体育直播
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