CSS 如何强制显示垂直滚动条？
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How do I force a vertical scrollbar to appear?
提问by Bakabaka
My site has both very short and longer pages. Since I center it in the viewport with margin: 0 auto, it jumps around a few pixels when switching from a page that has a scrollbar to one that hasn't and the other way around.
我的网站有很短和较长的页面。由于我使用 将其居中在视口中margin: 0 auto，因此当从具有滚动条的页面切换到没有滚动条的页面时，它会跳动几个像素，反之亦然。
Is there a way to force the vertical scrollbar to always appear, so my site stays put when browsing it?
有没有办法强制垂直滚动条始终出现，以便我的网站在浏览时保持不变？
回答by John Conde
Give your bodytag an overflow: scroll;
给你的body标签overflow: scroll;
body {
overflow: scroll;
}
or if you only want a vertical scrollbar use overflow-y
或者如果您只想使用垂直滚动条 overflow-y
body {
overflow-y: scroll;
}
回答by Bakabaka
html { overflow-y: scroll; }
This cssrule causes a vertical scrollbar to always appear.
此css规则会导致始终出现垂直滚动条。
Source: http://css-tricks.com/snippets/css/force-vertical-scrollbar/
来源：http: //css-tricks.com/snippets/css/force-vertical-scrollbar/
