用于位置:粘;要工作，你的sticky元素应该放在body标签的右边，作为一个直接的子元素 不应该有任何包装divs或类似的东西。 因为它只能在到达父元素的底部之前保持固定。 你应该指定它应该粘在哪里，比如:top: 0;

检查祖先元素是否有溢出集(例如overflow:hidden);试着切换它。您可能需要检查DOM树的位置高于您的预期=)。

这可能会影响你的位置:粘在一个后代元素上。

如果danday74的修复不起作用，检查父元素是否有一个高度。

在我的情况下，我有两个孩子，一个漂浮在左边，一个漂浮在右边。 我想要右边的浮动一个变得粘性，但必须添加一个<div style="clear: both;"></div>在父元素的末尾，赋予它高度。

我也有同样的问题，我在这里找到了答案。

如果你的元素没有像预期的那样粘在一起，首先要检查应用到容器上的规则。

具体来说，查找元素的任何父元素上设置的溢出属性。不能在position: sticky元素的父元素上使用:overflow: hidden、overflow: scroll或overflow: auto。

这是什么绊倒了我…我的粘性div是在另一个div，所以父div需要一些额外的内容后粘性div，使父div“足够高”的粘性div，以“滑过”其他内容，因为你向下滚动。

所以在我的情况下，在黏黏的div之后，我必须添加:

    %div{style:"height:600px;"} 
       

(我的应用程序有两个并排的div，左边是一个“高”图像，右边是一个短的数据输入表单，我希望当你向下滚动时，数据输入表单漂浮在图像旁边，这样表单就总是在屏幕上。它不会工作，直到我添加了上面的“额外内容”，这样粘性div就有东西可以“滑动”

我还遇到了一些事情:

当你的sticky元素是一个组件时(angular等)

如果“sticky”元素本身是一个带有自定义元素选择器的组件，比如一个名为<app-menu-bar>的angular组件，你需要在该组件的css中添加以下内容: :主机{显示:块;} //或使用flexbox

or

    app-menu-bar  { display: block; }   // (in the containing component's css)

Safari on iOS in particular seems to require `display:block` even on the root element `app-root` of an angular application or it won't stick.

If you are creating a component and defining the css inside the component (shadow DOM / encapsulated styles), make sure the position: sticky is being applied to the 'outer' selector (eg. app-menu-bar in devtools should show the sticky position) and not a top level div within the component. With Angular, this can be achieved with the :host selector in the css for your component. :host { position: sticky; display: block; // this is the same as shown above top: 0; background: red; }

其他

If the element following your sticky element has a solid background, you must add the following to stop it from sliding underneath: .sticky-element { z-index: 100; } .parent-of-sticky-element { position: relative; } Your sticky element must be before your content if using top and after it if using bottom. There are complications when using overflow: hidden on your wrapper element – in general it will kill the sticky element inside. Better explained in this question Mobile browsers may disable sticky/fixed positioned items when the onscreen keyboard is visible. I'm not sure of the exact rules (does anybody ever know) but when the keyboard is visible you're looking at a sort of 'window' into the window and you won't easily be able to get things to stick to the actual visible top of the screen. Make sure you have: position: sticky; and not display: sticky;

杂项可用性问题

Be cautious if your design calls for for sticking things to the bottom of the screen on mobile devices. On iPhone X for instance they display a narrow line to indicate the swipe region (to get back to the homepage) - and elements inside this region aren't clickable. So if you stick something there be sure to test on iPhone X that users can activate it. A big 'Buy Now' button is no good if people can't click it! If you're advertising on Facebook the webpage is displayed in a 'webview' control within Facebook's mobile apps. Especially when displaying video (where your content begins in the bottom half of the screen only) - they often completely mess up sticky elements by putting your page within a scrollable viewport that actually allows your sticky elements to disappear off the top of the page. Be sure to test in the context of an actual ad and not just in the phone's browser or even Facebook's browser which can all behave differently.