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.

如果你的父母正在使用显示伸缩，粘滞位置将不起作用。当我在一个溶液中读到这个

由于flex box元素默认为拉伸，因此所有元素的高度都相同，不能滚动。

如果你使用display: flex;在父元素上，你必须添加这个到sticky元素align-self: flex-start;同时设置height为auto height: auto;

这就是sticky元素类的样子

.stick-ontop {
  position: -webkit-sticky !important; // for safari
  position: sticky !important;
  top: 0;
  align-self: flex-start;
  height: auto;
}

注意空网格区域!

在我的例子中，我有这样的东西:

.cart-areas {
    grid-template-columns: 2fr 0.2fr 1.5fr;
    grid-template-areas:
      'order . summary'
      'order . .'
      'order . .';
}

我希望当用户完成结帐表单时，总结网格项具有粘性。它没有工作，因为那些空的网格项(用。标记)。

解决方案是删除这些空项，如下所示:

.cart-areas {
    grid-template-columns: 2fr 0.2fr 1.5fr;
    grid-template-areas:
      'order . summary'
      'order . summary'
      'order . summary';
}

粘性定位是相对定位和固定定位的混合体。元素被视为相对定位，直到它超过指定的阈值，此时它被视为固定定位。 .．. 您必须指定一个阈值，其中至少有一个是上、右、下或左，以便粘滞定位按预期的方式工作。否则，它将与相对定位难以区分。 (来源:中数)

在你的例子中，你必须通过使用top属性来定义它最后应该停留的位置。

html, body { height: 200%; } nav { position: sticky; position: -webkit-sticky; top: 0; /* required */ } .nav-selections { text-transform: uppercase; letter-spacing: 5px; font: 18px "lato", sans-serif; display: inline-block; text-decoration: none; color: white; padding: 18px; float: right; margin-left: 50px; transition: 1.5s; } .nav-selections:hover { transition: 1.5s; color: black; } ul { background-color: #B79b58; overflow: auto; } li { list-style-type: none; } <nav> <ul align="left"> <li><a href="#/contact" class="nav-selections" style="margin-right:35px;">Contact</a></li> <li><a href="#/about" class="nav-selections">About</a></li> <li><a href="#/products" class="nav-selections">Products</a></li> <li><a href="#" class="nav-selections">Home</a></li> </ul> </nav>

溢出需要被移除或设置为initial来创建位置，这是TRUE: sticky作用于子元素。我在我的Angular应用中使用了材质设计，发现一些材质组件改变了溢出值。我的解决方案是

mat-sidenav-container, mat-sidenav-content {
  overflow: initial;
}

从我的评论来看:

位置:粘需要一个坐标来确定粘的位置

nav { position: sticky; top: 0; } .nav-selections { text-transform: uppercase; letter-spacing: 5px; font: 18px "lato", sans-serif; display: inline-block; text-decoration: none; color: white; padding: 18px; float: right; margin-left: 50px; transition: 1.5s; } .nav-selections:hover { transition: 1.5s; color: black; } ul { background-color: #B79b58; overflow: auto; } li { list-style-type: none; } body { height: 200vh; } <nav> <ul align="left"> <li><a href="#/contact" class="nav-selections" style="margin-right:35px;">Contact</a></li> <li><a href="#/about" class="nav-selections">About</a></li> <li><a href="#/products" class="nav-selections">Products</a></li> <li><a href="#" class="nav-selections">Home</a></li> </ul> </nav>

除了FF和Chrome，其他浏览器也可以使用polyfill。这是一个实验性的规则，可以通过浏览器随时实现，也可以不实现。Chrome在几年前添加了它，然后删除了它，它似乎回来了…但能持续多久呢?

最接近的是position:relative +坐标，当滚动到达粘性点时更新，如果你想将其转换为javascript脚本