bootstrap 4.0 导航栏自适应
程序员文章站
2022-03-09 12:27:19
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1.重要的属性类
navbar-expand-md ， collapse navbar-collapse 保证切换适配。和切换显示
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!-- meta使用viewport以确保页面可*缩放 -->
<!-- <meta name="viewport" content="width=device-width, initial-scale=1"> -->
<meta name="viewport" content="width=device-width, initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="title" content="">
<meta name="keywords" content="">
<meta name="description" content="">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<!--你自己的样式文件 -->
<!-- <link href="css/soy.css" rel="stylesheet"> -->
</head>
<body>
<div id="">
<!-- 头部 header - start -->
<div class="container" style="">
<nav class="navbar navbar-expand-md navbar-light bg-faded">
<a class="navbar-brand" href="#">Navbar</a>
<!-- <a class="navbar-brand" href="#">Navbar</a> -->
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#exCollapsingNavbar" aria-expanded="false">
☰
</button>
<!-- 切换菜单内容 -->
<div class="collapse navbar-collapse" id="exCollapsingNavbar">
<ul class="nav navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
</ul>
</div>
<!-- 切换菜单内容 -->
<form class="form-inline navbar-form pull-right collapse navbar-collapse">
<input class="form-control" type="text" placeholder="Search">
<button class="btn btn-success-outline" type="submit">Search</button>
</form>
</nav>
</div>
<!-- 头部 header - end -->
<!-- 中部 content - start -->
<div class="" style="">
<div class="jumbotron">
<div class="container">
<h1 class="display-3">Fluid jumbotron</h1>
<p class="lead">This is a modified jumbotron that occupies the entire horizontal space of it's parent.</p>
<form class="form-inline navbar-form pull-right navbar-collapse">
<input class="form-control" type="text" placeholder="Search">
<button class="btn btn-success-outline" type="submit">Search</button>
</form>
</div>
</div>
</div>
<div class="container">
<ol class="breadcrumb">
<li class="active">Home</li>
</ol>
<ol class="breadcrumb">
<li><a href="#">Home</a></li>
<li class="active">Library</li>
</ol>
<ol class="breadcrumb" style="margin-bottom: 5px;">
<li><a href="#">Home</a></li>
<li><a href="#">Library</a></li>
<li class="active">Data</li>
</ol>
</div>
</div>
<!-- 引入 js 库 -->
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdn.bootcss.com/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://cdn.bootcss.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<script src="js/sy_m.js"></script>
</body>
</html>