<div style="background: #04ff00; padding: 20px; border-radius: 20px;">

    <h2>TEST: Can you see this green box?</h2>

    <p>If you see this in Compose View, your editor accepts basic HTML.</p>

    <p>If not, you MUST use Code View or HTML block.</p>

</div>

TEST: Can you see this green box?

If you see this in Compose View, your editor accepts basic HTML.

If not, you MUST use Code View or HTML block.