index.html

<!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 rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
</head>
<body>
    
        <div class="box">
            <div class="heading">
                <h2>To-Do list!</h2>
                <i class="fa-solid fa-list-check"></i>
            </div>
            
            <div class="form">
                <input type="text" class="text" placeholder="Add Your Tasks">
                <button class="btn">Add</button>
            </div>
            
            <ul class="list">
                
            </ul>
        </div>
    
    <script src="app.js"></script>
</body>
</html>