This is a sample page, to show you how the cookie prompt will look like (at the bottom of the page). On this particular page, the prompt will always display when you open the page. But on any other pages, once you approve the cookies, the prompt will not show up anymore.
For basic cookie prompt display, with default colors, paste this code before the closing </body> tag:
<script async src="https://www.cookie.eu/script.js"></script>
Optionally, you can customize the colors, text, etc, see the advanced cookie prompt page.