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<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h3>工具提示定位</h3>
  <p>data-bs-placement 属性指定工具提示的位置。</p>
  <a href="#" data-bs-toggle="tooltip" data-bs-placement="top" title="太棒了！">Top</a>
  <a href="#" data-bs-toggle="tooltip" data-bs-placement="bottom" title="太棒了！">Bottom</a>
  <a href="#" data-bs-toggle="tooltip" data-bs-placement="left" title="太棒了！">Left</a>
  <a href="#" data-bs-toggle="tooltip" data-bs-placement="right" title="太棒了！">Right</a>
</div>

</body>
</html>

W3School TIY Editor