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.

这是MarsAndBack和Miftah Mizwar回答的延续。

他们的答案是正确的。但是，很难确定问题的始祖。

简单来说，只需在浏览器控制台中运行这个jQuery脚本，它就会告诉您每个祖先上overflow属性的值。

$('.your-sticky-element').parents().filter(function() {
    console.log($(this));
    console.log($(this).css('overflow'));
    return $(this).css('overflow') === 'hidden';
});

如果一个祖先没有溢出:可见改变它的CSS使它有!

同样，正如在其他地方所述，确保你的sticky元素在CSS中有这个:

.your-sticky-element {
    position: sticky;
    top: 0;
}

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。

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;
}

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。

尽管阅读了整个页面，尝试了所有的方法，但在我的移动设备上，这就是不能工作。没有任何棘手的操作——这是我唯一需要它发挥作用的地方。我已经排除了任何特殊的名称或覆盖，将阻止它在这个屏幕宽度的功能。清除我的移动格式化代码作为测试，没有看到任何变化。在我笔记本电脑上的Chrome浏览器上运行得很好，但在我的新S10上的Chrome浏览器上就完全不行。