  <!DOCTYPE html> <html lang="vi"> <head>     <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&family=Roboto:wght@500&display=swap" rel="stylesheet">     <meta charset="UTF-8">     <meta name="viewport" content="width=device-width, initial-scale=1.0">     <title>Nxtdzvcll</title>     <link rel="stylesheet" href="hello.css"> </style> </head> <body>     <div id="login" class="container">         <h2>Login Menu </h2>         <input type="password" id="passwordInput" class="password-input" placeholder="Nhập key vào đây">         <button id="loginButton">Đăng nhập</button>         <button id="contactButton">Get Key</button>     </div>          <div id="cheatMenu" class="hidden">         <h3><img src="https://1.bp.blogspot.com/-4YwGuAcNnz0/YGLZWuOi9II/AAAAAAAArCU/eFlJ3kPh7wYJa27Sx-qZ4Nin2ZsLqsATgCNcBGAsYHQ/s0/0d044404cb65eaa5dbefa57849f3715c.jpeg" alt="Profile Picture"style="width: 70px; height: auto; border-radius: 0px;">Nxtdzvcll</h3>         <ul>             <li>                 <span class="function-name">Music Play</span>                 <label class="switch"><input type="checkbox" id="playMusicButton"><span class="slider"></span></label>             </li>             <li>                 <span class="function-name">Speed Run</span>                 <label class="switch">                     <input type="checkbox" id="activateSpeedButton" onchange="x8(this)">                     <span class="slider"></span>                 </label>             </li>                         <li>                 <button id="toggleSubMenu" class="subMenuButton">Mở Profile</button>             </li>         </ul>         <span class="function-name">Chọn Nhạc</span>         <select id="songSelect">             <option value="">Chọn một bài hát</option>             <option value="0">Always With Me</option>             <option value="1">Dối Lòng</option>             <option value="2">Free Dom</option>             <option value="3">Những Lời Dối Lòng</option>             <option value="4">Six Usa V2</option>              <option value="5">Em Nào Có Tội</option>             <option value="6">Sơn Tùng Chill</option>             <option value="7">Nhạc Sex</option>             <option value="8">Hành Lang Cũ</option>             <option value="9">Nhạc Đi Tắm</option>             <option value="10">Nhạc Tết 2</option>             <option value="11">Nhạc Cách Mạng</option>             <option value="12">Bạc Phận</option>             <option value="13">Nhạc Tết</option>             <option value="14">Future</option>         </select>     </div>      <!-- Menu Phụ -->     <div id="subMenu">         <div id="profile">             <img src="https://1.bp.blogspot.com/-4YwGuAcNnz0/YGLZWuOi9II/AAAAAAAArCU/eFlJ3kPh7wYJa27Sx-qZ4Nin2ZsLqsATgCNcBGAsYHQ/s0/0d044404cb65eaa5dbefa57849f3715c.jpeg" alt="Profile Picture">             <div>                 <h4>Nxtdzvcll</h4>                 <h5>Ngày sinh: 02/02/200x</h5>                 <h5>Địa chỉ: Thanh Hoá </h5>             </div>         </div>         <button id="updateProfileButton">Tắt Profile</button>     </div>   <audio id="backgroundMusic" loop></audio> <div id="particles-js"></div>  <script src="https://cdn.jsdelivr.net/npm/particles.js@2.0.0/particles.min.js"></script>     <script src="hello.js"></script> </body> </html>