我只是偶然发现了html上overflow: hidden的用法，这在我看来是不合逻辑的:
* {
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;
}Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.这是关于将滚动框从html移动到body，但我不明白为什么这个示例只适用于overflow: hidden？body的高度已经只有50vh，所以html元素上应该不会发生溢出？