So verwenden Sie „overflow:hidden“ für „html“, um das Bildlauffeld in den Textkörper zu verschieben

Question

Ich bin gerade über die Verwendung von overflow:hidden 在 html gestolpert und es kommt mir unlogisch vor:

* {
  all: unset;
  display: revert;
}
html {
  height: 100vh;
  overflow: hidden;
  background: black;
}
body {
  height: 50vh;
  font-size: 5rem;
  background: white;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  overflow-y: scroll;
}

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Hier geht es darum, das Bildlauffeld vom html 移动到 body ，但我不明白为什么这个例子只适用于 overflow:hidden？ body的高度已经只有50vh，那么html-Element zu verschieben, damit es nicht überläuft, oder?

Answer 1

来自规范：

在 html 上设置溢出将禁用传播并在 body 元素上保留溢出