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html - 粘滞位置 : Header scrolled away after a while

转载 作者：行者123 更新时间：2023-12-03 23:51:05 26 4
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在我的网站上，我制作了 <nav>坚持到顶部，但是当我向下滚动时它只停留几秒钟/像素，然后它被滚动离开，请参阅下面的代码片段并向下滚动。我想要 nav向下滚动时随时停留在顶部，<header> 除外可见。

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

最佳答案

我相信这可能是因为 height: 100%在您的 body 上.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(viewport)高度。因此，当您滚动越过 body 的底部时, nav停止粘连。

附带说明，尽管我认为您不应该使用 position: sticky刚刚。它的浏览器支持不到 20%。 http://caniuse.com/#feat=css-sticky

解决方案:替补height: 100%;至min-height: 100%;在#wrapper 中。仅删除 height: 100%; 时页面小于内容未填满视口(viewport)的页面上的视口(viewport)

关于html - 粘滞位置 : Header scrolled away after a while，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30227863/

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