实现响应式导航条通常需要使用HTML、CSS和JavaScript(通常使用jQuery)的组合。以下是一个简单的例子,演示如何使用CSS和jQuery创建一个响应式导航条:
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Responsive Navigation Bar</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div class="navbar">
<div class="menu-toggle" id="mobile-menu">
<span class="bar"></span>
<span class="bar"></span>
<span class="bar"></span>
</div>
<ul class="nav-list">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
<script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
<script src="script.js"></script>
</body>
</html>
CSS (styles.css):
body {
margin: 0;
padding: 0;
font-family: Arial, sans-serif;
}
.navbar {
background-color: #333;
overflow: hidden;
}
.nav-list {
list-style: none;
margin: 0;
padding: 0;
display: flex;
}
.nav-list li {
margin: 0;
}
.nav-list a {
display: block;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
.nav-list a:hover {
background-color: #ddd;
color: black;
}
.menu-toggle {
display: none;
cursor: pointer;
}
.bar {
display: block;
width: 25px;
height: 3px;
background-color: white;
margin: 6px 0;
transition: 0.4s;
}
@media screen and (max-width: 600px) {
.nav-list {
display: none;
flex-direction: column;
text-align: center;
width: 100%;
position: absolute;
background-color: #333;
}
.nav-list.show {
display: flex;
}
.nav-list li {
width: 100%;
text-align: center;
margin: 0;
}
.menu-toggle {
display: block;
}
}
JavaScript (script.js):
$(document).ready(function () {
$('#mobile-menu').click(function () {
$('.nav-list').toggleClass('show');
});
});
这个例子中,导航条在屏幕宽度小于等于600像素时变为响应式,显示一个菜单按钮。点击菜单按钮时,导航链接会显示或隐藏。菜单按钮使用三个水平条表示。
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