// Get a reference to an existing parent element
const parentElement = document.getElementById('container');

if (parentElement) {
    // 1. Create a new div element
    const newDiv = document.createElement('div');

    // 2. Set its text content
    newDiv.textContent = 'This is a dynamically created element!';

    // 3. Add a class for styling (optional)
    newDiv.classList.add('dynamic-item');

    // 4. Set an attribute (e.g., a data attribute)
    newDiv.setAttribute('data-id', '123');

    // 5. Append the new div to the parent element
    parentElement.appendChild(newDiv);

    console.log('New element appended:', newDiv);
} else {
    console.error('Parent element with ID "container" not found.');
}

/*
HTML structure for testing:
<div id="container">
    <p>Existing content</p>
</div>
*/