fixed{
position: fixed;
top: 0;
bottom: 0;
overflow-y: scroll;
overflow-x: hidden;
padding-top: 20px;
}
fixed{
position: fixed;
top: 0;
bottom: 0;
overflow-y: scroll;
overflow-x: hidden;
padding-top: 20px;
}
本文标题:position:fixed 滚动条 长页面无法向下滚动
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