1. Cookie banner

In the HTML header, as early as possible

<!-- OneTrust Cookies Consent Notice start for effectiveviews.be -->
<script type="text/javascript"
    src="https://cdn.cookielaw.org/consent/0442acfa-7a83-496c-b74e-4881a13b3f59/OtAutoBlock.js" ></script>
<script type="text/javascript" data-document-language="true" charset="UTF-8"
    src="https://cdn.cookielaw.org/scripttemplates/otSDKStub.js"
    data-domain-script="0442acfa-7a83-496c-b74e-4881a13b3f59" ></script>
<script type="text/javascript"> function OptanonWrapper() { } </script>
<!-- OneTrust Cookies Consent Notice end for effectiveviews.be -->

2. Cookie Settings button

In the HTML Body, where you want the button to appear

<!-- OneTrust Cookies Settings button start -->
<button id="ot-sdk-btn" class="ot-sdk-show-settings">Cookie settings</button>
<!-- OneTrust Cookies Settings button end -->