当用户使用jQuery滚动时，更改div css [英] Change div css when user scrolls past it, using jQuery

问题描述

当用户滚动过去div时，我需要将它的css改为position：fixed。
就像这里所做的一样： http://imakewebthings.com/jquery -waypoints / shortcuts / sticky-elements / ，但只是简单的jQuery，没有插件。

一旦用户滚动到另一个div，div也必须停止滚动。

例如：

 < div id =stuff>< / div> 
< div id =this>< / div> //必须在用户到达时开始用户滚动。 
< div id =footer>< / div> //当#this达到#footer的10px时，它必须停在当前位置，以防止重叠
  

我假设我会使用 .scroll（）和 .css（），但我不知道该从哪里去。 我注意到你的回答 #this 突然消失，一旦你回到 #footer 。我调整了答案，允许 #this 坚持 #footer ，并且滚动更顺畅。

我的演示使用稍微不同的标记，稍微冗长些，所以跳转到jsFiddle并检查出来。

< h2> 演示： jsfiddle.net/Marcel/e9hyw/

When a user scrolls past a div I need it's css changed to position:fixed. Much like what is done here: http://imakewebthings.com/jquery-waypoints/shortcuts/sticky-elements/ but with just plain jquery, without the plugin.
The div must also stop scrolling once the user scrolls to another div.
For example:

<div id="stuff"></div>
<div id="this"></div>//must start scrolling with user when user reaches it.
<div id="footer"></div>// when #this reaches within say, 10px, of #footer it must stop in it's current position, in order to prevent overlap

I'm assuming i'd use .scroll() and .css(), but I have no idea where to go from there.

解决方案

I noticed in your answer #this disappears abruptly once you get down to #footer. I've tweaked your answer to allow for #this to stick to #footer and scroll which is a lot smoother.

My demo uses slightly different markup and is a little more verbose so jump over to jsFiddle and check it out.

Demo: jsfiddle.net/Marcel/e9hyw/

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