对编程有点陌生，我正在制作一个学校项目，我从 w3schools 一步步制作了一个“ul 导航栏”，然后我尝试在页面中放置一个视频，但视频有点搞乱了我的导航栏，任何想法如何使导航栏的底部固定，这样当我放置 img 或视频时它就不会这样做？谢谢你！代码：<!DOCTYPE html><html> <head> <style> body {margin:0;}h1 { font-family: "Comic Sans MS", cursive, sans-serif;}li { font-family: "Comic Sans MS", cursive, sans-serif;} ul { list-style-type: none; margin: 0px; padding: 0px; overflow: auto; background-color: #7092be; position: sticky; top: 75px; width: 100%;}li { float: left;}li { border-right: 1px solid #bbb;}li:last-child { border-right: none;}li a { display: block; color: white; text-align: center; padding: 14px 16px; text-decoration: none;}li a:hover { background-color: #496fa0; }.active { background-color: #bdcce1;}.center { margin: 0width: 480px; }</style> <title></title> <meta charset='utf-8'> <meta name='description' content=''> <meta name='keywords' content=''> <meta name='author' content=''> <meta name='robots' content='all'> </head> <body> <h1> Vtipy na den</h1> <ul> <li><a href="index.html">Domov</a></li> <li><a href="ctyri.html">Najdu co neznám</a></li> <li><a href="obrazky.html">Obrázky</a></li> <li><a class="active" href="videjko.html">Video vtip</a></li> <li><a href="tabulky.html">Tabulky</a></li> <div> <video class='center' width="640" height="480" controls autoplay> <source src="vtip1.mp4" type="video/mp4"> <source src="vtip1.mp4" type="video/ogg"> Your browser does not support the video tag. </video> </div> </body></html>这是页面https://i.stack.imgur.com/35sSc.png
2 回答
叮当猫咪
TA贡献1776条经验 获得超12个赞
我已经为您整理了代码并解决了问题。您只是忘记关闭ul标签，您需要关闭标签才能显示新的块级元素，除非您决定使用它display flex，您还可以为您的 DIV 命名并为每个部分创建一个新的 DIV页面强制使用块级元素。
body {
margin: 0;
}
h1 {
font-family: "Comic Sans MS", cursive, sans-serif;
}
li {
font-family: "Comic Sans MS", cursive, sans-serif;
}
ul {
list-style-type: none;
margin: 0px;
padding: 0px;
overflow: auto;
background-color: #7092be;
position: sticky;
top: 75px;
width: 100%;
}
li {
float: left;
}
li {
border-right: 1px solid #bbb;
}
li:last-child {
border-right: none;
}
li a {
display: block;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
li a:hover {
background-color: #496fa0;
}
.active {
background-color: #bdcce1;
}
.center {
margin: 0width: 480px;
}
<!DOCTYPE html>
<html>
<head>
<title>Page title</title>
<meta charset='utf-8'>
<meta name='description' content=''>
<meta name='keywords' content=''>
<meta name='author' content=''>
<meta name='robots' content='all'>
</head>
<body>
<h1> Vtipy na den</h1>
<ul>
<li><a href="index.html">Domov</a></li>
<li><a href="ctyri.html">Najdu co neznám</a></li>
<li><a href="obrazky.html">Obrázky</a></li>
<li><a class="active" href="videjko.html">Video vtip</a></li>
<li><a href="tabulky.html">Tabulky</a></li>
</ul>
<div>
<video class='center' width="640" height="480" controls autoplay>
<source src="vtip1.mp4" type="video/mp4">
<source src="vtip1.mp4" type="video/ogg"> Your browser does not support the video tag.
</video>
</div>
</body>
</html>
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