Javascript Paste from Clipboard

<!DOCTYPE html>
<html>
<head>
</head>
<body>
    <div id="app" class="container">
        <h3>JavaScript Paste from Clipboard</h3>
        <textarea id="textarea" class="textarea"></textarea>
        <button id="paste-btn" class="paste-btn">
            Paste from Clipboard
        </button>
    </div>
    <script>
        document.addEventListener("DOMContentLoaded", function () {
            const textarea = document.getElementById("textarea");
            const pasteBtn = document.getElementById("paste-btn");

pasteBtn.addEventListener("click", () => {
                if (navigator.clipboard) {
                    navigator.clipboard
                        .readText()
                        .then((text) => {
                            textarea.value = text;
                        })
                        .catch((error) => {
                            console.error("Failed to read clipboard contents: ", error);
                        });
                } else {
                    console.error("Clipboard API not supported in this browser.");
                }
            });
        });
    </script>
    <style>
        .container {
            background-color: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
            padding: 20px;
            width: 500px;
            margin: 0 auto;
        }

h3 {
            margin-top: 0;
            margin-bottom: 20px;
            text-align: center;
            color: #333;
        }

.textarea {
            width: 100%;
            height: 150px;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            resize: none;
        }

.paste-btn {
            display: block;
            width: 100%;
            padding: 10px;
            margin-top: 10px;
            border: none;
            border-radius: 4px;
            background-color: #007bff;
            color: #fff;
            font-size: 16px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

.paste-btn:hover {
            background-color: #0056b3;
        }
    </style>
</body>

</html>