如何将静态div放在绝对位置div的顶部？

此属性指定堆栈$位置值为的框的b $ b级别绝对，固定或相对。

code>，而是可以使用 z-index 来确定顺序。

position：relative 定位元素相对于其默认（静态）位置，因此如果不指定顶部，底部，左侧或右侧，则 static 和相对之间没有区别您可以使用 z-index 将元素向上移动。

编辑：根据您的代码示例， 这是一个有效的演示 。

编辑2：根据Nathan D. Ryan在下面的评论中的建议，您还可以应用一个否定的 z-index 到你绝对定位的div。这会将它移动到没有定义的 z-index 的页面上的一切。

I am building a small web application. I have two divs. One is absolute and the other is static. I am trying to position my static div on top of my absolute one, so that it remains the top most item.

Very simple Code Sample:

jsbin/efuxe3/edit

How can this be done?

Edit: I have been using z-index. It seems to have no effect.

z-index doesn't apply to static elements.

According to this page:

This property specifies the stack level of a box whose position value is one of absolute, fixed, or relative.

If you make your div relative instead, you can use z-index to determine the order.

position: relative positions the element relative to its default (static) position, so if you don't specify a top, bottom, left or right then there'll be no difference between static and relative other than that relative allows you to use z-index to move your element up the stack.

Edit: based on your code sample, here's a working demo.

Edit 2: based on Nathan D. Ryan's suggestion in the comments below, you could also apply a negative z-index to your absolutely-positioned div. This would move it behind everything else on the page that didn't have a lower z-index defined.