Popperjs based tooltip
<script src="https://unpkg.com/@popperjs/core@2"></script>
<link rel="stylesheet" type="text/css" href="/js/jquery.popper.css" />
<script src="/js/jquery.popper.js"></script>
<script>
function initPopper() {
$('.popper').popper();
}
$(document).ready(function () {
initPopper();
$(document.body).bind("DOMSubtreeModified", initPopper);
});
</script>
<fieldset class="popper form-group"><legend>Toggle Info</legend>
<button id="btnToggleInfo" class="btn btn-primary popper-toggle" type="button" aria-haspopup="true" aria-expanded="false">Toggle</span</button>
<div class="popper-menu" aria-labelledby="btnToggleInfo">
<!-- contents -->
</div>
</fieldset>