Here is the code I used in integrating the fb plugin using iframe into the website.
Please replace the fields that require your actual account.
I also included an html tag .
Enjoy,
Coffee Cup
https://developers.facebook.com/docs/plugins/like-button
JavaScript SDK
Step 1: Include the JavaScript SDK on your page once, ideally right after the opening body tag.
<div id="fb-root"></div>
<script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v14.0" nonce="F1YcA0n6"></script>
Step 2: Place this code wherever you want the plugin to appear on your page.
<div class="fb-like" data-href="https://www.facebook.com/PoshMotorcycleShop" data-width="200" data-layout="standard" data-action="like" data-size="small" data-share="true"></div>
IFrame
<iframe src="https://www.facebook.com/plugins/like.php?href=https%3A%2F%2Fwww.facebook.com%2FPoshMotorcycleShop&width=200&layout=standard&action=like&size=small&share=true&height=35&appId" width="200" height="35" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowfullscreen="true" allow="autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share"></iframe>
For Android the URL schema is:
fb://page/page_id
For iOS the URL schema is:
fb://page?id=page_id
https://developers.facebook.com/docs/plugins/like-button
<html>
<head>
<title>Your Website Title</title>
<!-- You can use open graph tags to customize link previews.
Learn more: https://developers.facebook.com/docs/sharing/webmasters -->
<meta property="og:url" content="https://www.your-domain.com/your-page.html" />
<meta property="og:type" content="website" />
<meta property="og:title" content="Your Website Title" />
<meta property="og:description" content="Your description" />
<meta property="og:image" content="https://www.your-domain.com/path/image.jpg" />
</head>
<body>
<!-- Load Facebook SDK for JavaScript -->
<div id="fb-root"></div>
<script async defer crossorigin="anonymous"
src="https://connect.facebook.net/en_US/sdk.js#xfbml=1
&version={graph-api-version}
&appId={your-facebook-app-id}
&autoLogAppEvents=1"
nonce="FOKrbAYI">
</script>
<!-- Your like button code -->
<div class="fb-like"
data-href="https://www.your-domain.com/your-page.html"
data-width=""
data-layout="standard"
data-action="like"
data-size="small"
data-share="true">
</div>
</body>
</html>

