Here is an example of using the Button Toggle in a plain html page:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<link href="https://developer.temenos.com/uux/base.css" rel="stylesheet" />
<script src="https://developer.temenos.com/uux/unified-ux-web.min.js"></script>
</head>
<body>
<uwc-button-toggle compact></uwc-button-toggle>
<script>
const buttonToggle = document.querySelector("uwc-button-toggle");
const options = [
{ label: "One", value: "one" },
{ label: "Two", value: "two" },
{ label: "Three", value: "three" },
{ label: "Four", value: "four" },
];
buttonToggle.options = options;
</script>
</body>
</html>