Live Demo: Setting Container for Bootstrap 4 Popovers

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Setting Container for Bootstrap 4 Popovers</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js"></script>
<style>
	.bs-example{
    	margin: 150px 50px;
    }
    /* Styles for custom popover template */
    .popover-footer{
        padding: 6px 14px;
        background-color: #f7f7f7;
        border-top: 1px solid #ebebeb;
        text-align: right;
    }
</style>
<script>
$(document).ready(function(){
    $('[data-toggle="popover"]').popover({
        html: true,
        template: '<div class="popover"><div class="arrow"></div><h3 class="popover-header"></h3><div class="popover-body"></div><div class="popover-footer"><a href="#" class="btn btn-info btn-sm">Close</a></div></div>'
    });
    
    // Custom jQuery to hide popover on click of the close button
    $(document).on("click", ".popover-footer .btn" , function(){
        $(this).parents(".popover").popover('hide');
    });
});
</script>
</head>
<body>
<div class="bs-example">
    <p><button type="button" class="btn btn-primary btn-lg" data-toggle="popover" title="Custom Popover Template" data-content="A simple example of a customized Bootstrap popover that displays a footer with close button on every popover without adding any extra markup to the popover HTML code.">Customized Popover</button></p>
    <p><strong>Note:</strong> Click on the buttons to show/hide the popover.</p>
</div>
</body>
</html>

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Setting Container for Bootstrap 4 Popovers</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/js/bootstrap.bundle.min.js"></script>
<style>
    .bs-example{
        margin: 150px 50px;
    }
    /* Styles for custom popover template */
    .popover-footer{
        padding: 6px 14px;
        background-color: #f7f7f7;
        border-top: 1px solid #ebebeb;
        text-align: right;
    }
</style>
<script>
$(document).ready(function(){
    $('[data-toggle="popover"]').popover({
        html: true,
        template: '<div class="popover"><div class="arrow"></div><h3 class="popover-header"></h3><div class="popover-body"></div><div class="popover-footer"><a href="#" class="btn btn-info btn-sm">Close</a></div></div>'
    });
    
    // Custom jQuery to hide popover on click of the close button
    $(document).on("click", ".popover-footer .btn" , function(){
        $(this).parents(".popover").popover('hide');
    });
});
</script>
</head>
<body>
<div class="bs-example">
    <p><button type="button" class="btn btn-primary btn-lg" data-toggle="popover" title="Custom Popover Template" data-content="A simple example of a customized Bootstrap popover that displays a footer with close button on every popover without adding any extra markup to the popover HTML code.">Customized Popover</button></p>
    <p><strong>Note:</strong> Click on the buttons to show/hide the popover.</p>
</div>
</body>