<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>To-Do App</title> <link rel="stylesheet" href="styles.css"> </head> <body> <div class="container"> <h1>To-Do List</h1> <div class="input-container"> <input type="text" id="new-task" placeholder="Enter new task"> <button onclick="addTask()">Add Task</button> </div> <ul id="task-list"></ul> </div> <script src="app.js"></script> </body> </html>