Issue
Some pages in minecraft.net/zh-hans don`t have Scroll Bar after fully loaded. These pages have Scroll Bar at the beginning of loading, but it disappeared soon.
Known pages with this issue:
https://minecraft.net/zh-hans/get-minecraft
https://minecraft.net/zh-hans/mojang-account-move
https://minecraft.net/zh-hans/realms/terms
This has been tested on firefox and android and it has been found that you can use the scroll bar only when opening these website in IE mode of Edge.
在Microsoft Edge上，这些网址也可以复现：
These websites can also be reproduced on Microsoft Edge:
https://www.minecraft.net/en-us/article/mob-menagerie--allay
https://www.minecraft.net/zh-hans/article/vote-update
其实几乎每打开一个版本介绍的界面，都会出现该现象。
In fact, this phenomenon occurs almost every time a version introduction interface is opened.