我从w3school获得了代码,并将其放在我的php网站下,但下拉菜单不起作用。我不知道为什么它在php上不起作用。 w3school网站链接如下。 https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_responsive_navbar_dropdown 我删除了大部分代码,因为提交时间太长。 任何帮助将不胜感激!
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
.navbar a:hover, .dropdown:hover .dropbtn {
background-color: red;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
}
.dropdown-content a {
float: none;
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
text-align: left;
}
.dropdown-content a:hover {
background-color: #ddd;
}
.dropdown:hover .dropdown-content {
display: block;
}
</style>
</head>
<body>
<div class="navbar">
<a href="#home">Home</a>
<a href="#news">News</a>
<div class="dropdown">
<button class="dropbtn">Dropdown
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
</div>
答案 0 :(得分:0)
您Sholde使用以下命令启动.php文件:-
<?php
; ?>
Your Code HTML Hear !
所以它会是这样的:-
<?php
; ?>
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
awesome/4.7.0/css/font-awesome.min.css">
<style>
body {margin:0;font-family:Arial}
.topnav {
overflow: hidden;
background-color: #333;
}
...... Till The End
要使您的.php文件正常工作,请使用LocalHost使用XAMP之类的PHP服务器