試一試 - Bootstrap ref_js_tooltip

<!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 rel="stylesheet" href="/lib/bootstrap.min.css">
  <script src="/lib/jquery-1.12.2.min.js"></script>
  <script src="/lib/bootstrap.min.js"></script>
</head>
<body>

<div class="container">
  <h3>Tooltip Options</h3>
  <p>The <strong>delay</strong> option specifies the number of milliseconds it will take to show and hide the popover.</p>
  <p>This tooltip will take 1000 milliseconds to show when you hover over it, and 1000 milliseconds to hide on mouse leave.</p>
  <button class="btn btn-success btn-md">Hover over me (1000ms)</button><br><br>
  <p>This tooltip will take 500 milliseconds to show when you hover over it, and 100 ms to hide on mouse leave.</p>
  <button class="btn btn-danger btn-md">Hover over me (500ms)</button>
</div>

</body>
</html>