Tryit Editor v3.7

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="../../cdn.jsdelivr.net/npm/bootstrap%405.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="../../cdn.jsdelivr.net/npm/bootstrap%405.1.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h3>Popover Positioning</h3>
  
  <a href="#" title="Header" data-bs-toggle="popover" data-bs-placement="top" data-content="Content">Top</a>
  <a href="#" title="Header" data-bs-toggle="popover" data-bs-placement="bottom" data-content="Content">Bottom</a>
  <a href="#" title="Header" data-bs-toggle="popover" data-bs-placement="left" data-content="Content">Left</a>
  <a href="#" title="Header" data-bs-toggle="popover" data-bs-placement="right" data-content="Content">Right</a>
</div>

</body>

</html>