<!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 --> <!-- 按鈕 --> <!-- 列表 --> <!-- 導航 --> <!-- 導航欄 --> <!-- navbar --> <!-- bg-light背景灰色 --> <!-- bg-dark背景顏色黑色 --> <!-- navber-light字型顏色,黑色 --> <!-- navbar-dark字型顏色,白色 --> <!-- navber-expard一行顯示 --> <!-- 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">小紅不愛看小紅書</span> --> <a class="navbar-brand"> <img width="30" height="30" src="新建資料夾\1.jpeg"/> 老大 </a> <!-- 進入手機頁面,不讓它3顯示導航按鈕,當點選一個按鈕時,才讓它顯示出來 --> <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">首頁</a> </li> <li class="nav-item "> <a class="nav-link">商品</a> </li> <li class="nav-item "> <a class="nav-link">關於我們</a> </li> <li class="nav-item "> <a class="nav-link">招聘</a> </li> <!-- <li class="nav-item "> <a class="nav-link">註冊</a> </li> <li class="nav-item "> <a class="nav-link">登入</a> </li> --> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle " data-toggle="dropdown">個人中心</a> <div class="dropdown-menu"> <a class="dropdown-item">賬戶資訊</a> <a class="dropdown-item">訂單列表</a> <hr/> <a class="dropdown-item">退出</a> </div> </li> </ul> </div> </nav> </body> </html>