bootstrap导航栏学习
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.6.0/css/bootstrap.css" rel="stylesheet"> </head> <body> <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.7.1/jquery.js"></script> <script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.6.0/js/bootstrap.bundle.min.js"></script> <!-- 排版 --> <!-- 按钮 --> <!-- 列表 --> <!-- 导航 --> <!-- 导航栏 --> <!-- navbar --> <!-- bg-light背景灰色 --> <!-- bg-dark背景颜色黑色 --> <!-- navber-light字体颜色,黑色 --> <!-- navbar-dark字体颜色,白色 --> <!-- navber-expard一行显示 --> <!-- navber-expard-xl 1200px --> <!-- navber-expard-lg 992px--> <!-- navber-expard-md 768px--> <!-- -expard-sm 567px --> <nav class="navbar navbar-dark bg-dark navbar-expand "> <!-- <a class="navbar-brand">小明明天下落不明</a> --> <!-- <span class="navbar-brand">小红不爱看小红书</span> --> <a class="navbar-brand"> <img width="30" height="30" src="新建文件夹\1.jpeg"/> 老大 </a> <!-- 进入手机页面,不让它3显示导航按钮,当点击一个按钮时,才让它显示出来 --> <button class="navbar-toggler" data-toggle="collapse" data-target="#navbar" > <span class="navbar-toggler-icon"></span> </button> <div id="navbar" class="collapse navbar-collapse"> <ul class="navbar-nav"> <li class="nav-item active"> <a class="nav-link">首页</a> </li> <li class="nav-item "> <a class="nav-link">商品</a> </li> <li class="nav-item "> <a class="nav-link">关于我们</a> </li> <li class="nav-item "> <a class="nav-link">招聘</a> </li> <!-- <li class="nav-item "> <a class="nav-link">注册</a> </li> <li class="nav-item "> <a class="nav-link">登录</a> </li> --> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle " data-toggle="dropdown">个人中心</a> <div class="dropdown-menu"> <a class="dropdown-item">账户信息</a> <a class="dropdown-item">订单列表</a> <hr/> <a class="dropdown-item">退出</a> </div> </li> </ul> </div> </nav> </body> </html>