粘性位置：标题在一段时间后滚动离开

【问题标题】：Sticky Position: Header scrolled away after a while粘性位置：标题在一段时间后滚动离开
【发布时间】：2015-05-14 01:31:36
【问题描述】：

在我的网站上，我已将<nav> 固定在顶部，但当我向下滚动时它只停留几秒钟/像素，然后它会被滚动离开，请参阅下面的代码 sn-p 并向下滚动。我希望nav 在向下滚动时随时保持在顶部，除非<header> 可见。

HTML

<!DOCTYPE html>
<html>
    <head>
        <title>Danis Website</title>
        <link href="reset.css" type="text/css" rel="stylesheet">
        <link href="style.css" type="text/css" rel="stylesheet">
    </head>
    <body>
        <div id="wrapper">
            <header>
                <h1>Danis Website</h1>
            </header>
            <nav>
                <ul>
                    <li><a href="index.html">Home</a></li>
                    <li><a href="rezepte.html">Rezepte</a></li>
                    <li><a href="zutaten.html">Zutaten</a></li>   
                </ul>
            </nav>
            <main>
                Main Main Main<!-- In the code snippet below here are more lines of Text, here if have omitted the lines for better readability.

            </main>
            <footer>
                Footer
            </footer>
            </div>
    </body>
</html>

CSS 

*{
    margin: 0;
    padding: 0;
}
body, html{
    height: 100%;
    width: 90%;
    margin: 0 auto;
    background-color: #aaa;
}


#wrapper{
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: fuchsia;
}

header{
    flex: 0 0 50px;
    background-color: #888;
    text-align: center;
    position: sticky;
    top: 100px;
}

nav{
    flex: 0 0 50px;
    background-color: dodgerblue;
}

nav ul {
    display: flex;
    list-style-type: none;
    background-color: dodgerblue;
    height: 100%;
}

nav ul li {
    flex: 1;
    text-align: center;
    padding: 10px;
    border-left: 2px solid #aaa;
}

nav ul li:first-child {
    border-left: 0;
}

nav ul li a{
    color: white;   
    text-decoration: none;
}

nav ul li:hover {
    background-color: #888;
}

main{
    flex: 1;
    background-color: #ddd;
}

footer{
    flex: 0 0 50px;
    background-color: #888;
}

#list{
    display: flex;
    flex-wrap: wrap;
}

#list-item{
    flex: 0 1 300px;
    display: flex;
    border: 1px solid dodgerblue;
    margin: 10px;
    padding: 10px;
}

#list-item-img{
    flex: 0 0 auto;
    margin-right: 5px;
}

#list-item-text{
    flex: 1;
    margin-left: 5px;
}

#list-item-text p {
    margin: 5px;
}


*{
    margin: 0;
    padding: 0;
}
body, html{
    height: 100%;
    width: 90%;
    margin: 0 auto;
    background-color: #aaa;
}


#wrapper{
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: fuchsia;
}

header{
    flex: 0 0 50px;
    background-color: #888;
    text-align: center;
}

nav{
    flex: 0 0 50px;
    background-color: dodgerblue;
    position: sticky;
    top: 0px;
}

nav ul {
    display: flex;
    list-style-type: none;
    background-color: dodgerblue;
    height: 100%;
}

nav ul li {
    flex: 1;
    text-align: center;
    padding: 10px;
    border-left: 2px solid #aaa;
}

nav ul li:first-child {
    border-left: 0;
}

nav ul li a{
    color: white;   
    text-decoration: none;
}

nav ul li:hover {
    background-color: #888;
}

main{
    flex: 1;
    background-color: #ddd;
}

footer{
    flex: 0 0 50px;
    background-color: #888;
}

#list{
    display: flex;
    flex-wrap: wrap;
}

#list-item{
    flex: 0 1 300px;
    display: flex;
    border: 1px solid dodgerblue;
    margin: 10px;
    padding: 10px;
}

#list-item-img{
    flex: 0 0 auto;
    margin-right: 5px;
}

#list-item-text{
    flex: 1;
    margin-left: 5px;
}

#list-item-text p {
    margin: 5px;
}  
 
        <div id="wrapper">
            <header>
                <h1>Danis Website</h1>
            </header>
            <nav>
                <ul>
                    <li><a href="index.html">Home</a></li>
                    <li><a href="rezepte.html">Rezepte</a></li>
                    <li><a href="zutaten.html">Zutaten</a></li>   
                </ul>
            </nav>
            <main>
                Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main 
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            </main>
            <footer>
                Footer
            </footer>
            </div>
编辑： 我在 Arch Linux 上使用 Firefx 37.0.2

【问题讨论】：

    标签： html css scroll position sticky


    【解决方案1】：

    我相信这可能是因为您的body 上的height: 100%。当您的内容太长时，body 不会环绕整个内容，而是仅继承浏览器视口高度。因此，当您滚动越过 body 的底部时，nav 将停止粘贴。

    顺便说一句，虽然我认为你现在不应该使用position: sticky。它的浏览器支持不到 20%。 http://caniuse.com/#feat=css-sticky

    解决方案： 在#wrapper 中将height: 100%; 替换为min-height: 100%;。仅删除 height: 100%; 时，页面小于内容未填满视口的页面上的视口

    【讨论】：

    • 这似乎是问题所在，它滚动的点就在视口的尽头。我知道它没有得到广泛支持，但据我所知在其他浏览器中它只是被忽略了，所以没有问题
    • 我正在为水平滚动实现相同的功能。我没有 width 100% 属性。即使我设置了 min-width: 100%，stick 元素仍然被滚动了。有人可以帮我弄这个吗？ @danielr1996
    • 这个答案符合我的观点。好人。
    【解决方案2】：

    我这里有同样的棘手问题。

    正如 DigitalDouble 所说，这是内容高度问题， 但不仅是身体造成的

    我在我的 JavaScript 代码中找到了它...

    改变 $(contentElement).style.高度 = "99px";

    到 $(contentElement).style.minHeight = "99px";

    我希望它有所帮助。 =)

    【讨论】：

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