红线圈起来的那部分position:fixed固定后纯css做的下拉 就不见了 知道啥原因吗 也就是失效了下拉的是根据
<ul><a href="#"><span>标题</span></a> <li> <ul> <li> </li> </ul> </li> </ul> 然后就hover li中的ul 弹出下拉框
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You should be able to place the upper menu in any position, and wrap the bottom to fill the remaining height. Let’s make a scroll inside.
You should be able to place the upper menu in any position, and wrap the bottom to fill the remaining height. Let’s make a scroll inside.