How do I force a vertical scrollbar to appear?

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.

Is there a way to force the vertical scrollbar to always appear, so my site stays put when browsing it?

css
margin

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最佳答案

Give your body tag an overflow: scroll;

body {
overflow: scroll;
}

or if you only want a vertical scrollbar use overflow-y

body {
overflow-y: scroll;
}

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html { overflow-y: scroll; }

This css rule causes a vertical scrollbar to always appear.

Source: http://css-tricks.com/snippets/css/force-vertical-scrollbar/