我刚刚偶然发现 overflow:hidden 在 html 上的使用，这对我来说似乎不合逻辑：
* {
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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这是关于将滚动框从 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元素上应该不会发生溢出吧？
