حل تمرین جلسه نحوه ساخت functinal component

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        .container {
            max-width: 300px;
            display: flex;
            flex-direction: column;
            margin: 0 auto;
        }
        #todo-app {
            margin: 1em;
            text-align: center;
        }
        #todo-list,
        #todo-stats {
            margin: 1em auto;
            text-align: left;
            width: 450px;
        }
        #todo-list {
            list-style: none;
            padding: 0;
        }
        #todo-stats {
            color: #777;
        }
        #new-todo {
            border-radius: 5px;
        }
        .todo-input {
            display: block;
            font-family: Helvetica, sans-serif;
            font-size: 20px;
            line-height: normal;
            margin: 5px auto 0;
            padding: 6px;
            width: 420px;
        }
        .todo-label {
            color: #444;
            font-size: 20px;
            font-weight: bold;
            text-align: center;
        }
    </style>
</head>
<body>
    <div id="root"></div>
    <script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script>
    <script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
    <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
    <script type="text/babel">
        function TodoApp() {
            return  <div id="todo-app">
                <label className="todo-label" htmlFor="new-todo">What do you want to do today?</label>
                <input type="text" id="new-todo" className="todo-input" placeholder="type your tasks" />
            </div>
        }
        function TodoList() {
            return  <div className="todo-list">
              			<div className="todo-item">
                    		<input type="checkbox" />
                    		<span className="todo-content">task 1</span>
                		</div>
            		</div>
        }
        function Container() {
            return <div className="container">
            <TodoApp />
            <TodoList />
        </div>
        }
        ReactDOM.render(<Container />, document.getElementById('root'))
    </script>
</body>
</html>