<div style="display: flex; justify-content: center; padding: 15px;">
  <iframe
    style="--border-radius: 10px; box-shadow: 0 2px 10px 0 rgba(0,0,0,.20); border-radius: var(--border-radius); margin: auto;max-width: 420px"
    src="https://widget.onramper.com?color=266677&apiKey=pk_test_x5M_5fdXzn1fxK04seu0JgFjGsu7CH8lOvS9xZWzuSM0"
    height="660px"
    width="482px"
    title="Onramper widget"
    frameborder="0"
    allow="accelerometer; autoplay; camera; gyroscope; payment"
  >
  </iframe>
</div>