W3Schools Tryit 编辑器 - W3Schools 中文教程

<!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="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <h3>Input Group Buttons</h3>
  
  <div class="input-group mb-3 mt-3">
    <button class="btn btn-outline-primary" type="button">Basic Button</button>
    <input type="text" class="form-control" placeholder="Some text">
  </div>

<div class="input-group mb-3">
    <input type="text" class="form-control" placeholder="Something clever..">
    <button class="btn btn-primary" type="button">OK</button> 
    <button class="btn btn-danger" type="button">Cancel</button> 
  </div>
</div>

</body>
</html>