有趣的时刻，我不明显:至少在Chrome 70的位置:粘是不适用的，如果你已经使用DevTools设置。

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.

// Sticky Code

const stickyItem = document.querySelector(".item- made-sticky")

document.addEventListener（“scroll”， （） => { stickyItem.style.transform = translateY（${window.scrollY}px） })

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。

我知道太晚了。但我发现了一个解决方案，即使你使用溢出或显示:flex在父元素粘性将工作。

步骤:

为你想要设置粘性的元素创建一个父元素(确保创建的元素是相对于主体或全宽和全高的父元素)。 向父元素添加以下样式: ｛ 位置:绝对的; 身高:100 vmax; ｝ 对于粘滞元素，请确保添加的z-index高于页面中的所有元素。

就是这样!现在它必须起作用。问候

我相信这篇文章说了很多关于粘性的工作原理

How CSS Position Sticky Really Works! CSS position sticky has two main parts, sticky item & sticky container. Sticky Item — is the element that we defined with the position: sticky styles. The element will float when the viewport position matches the position definition, for example: top: 0px . Sticky Container —is the HTML element which wraps the sticky item. This is the maximum area that the sticky item can float in. When you define an element with position: sticky you’re automatically defining the parent element as a sticky container!