编程教程示范演示-小库网

Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/4.3.1/css/bootstrap.min.css">
  <script src="https://cdn.staticfile.net/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.staticfile.net/popper.js/1.15.0/umd/popper.min.js"></script>
  <script src="https://cdn.staticfile.net/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script>

<div class="container mt-3">
  <h1>Padding Top 工具</h1>
  <div class="pt-0 bg-warning">Padding Top 0</div>
  <div class="pt-1 bg-success">Padding Top 1</div>
  <div class="pt-2 bg-danger">Padding Top 2</div>
  <div class="pt-3 bg-primary">Padding Top 3</div>
  <div class="pt-4 bg-light">Padding Top 4</div>
  <div class="pt-5 bg-info">Padding Top 5</div>
  <br>

<p>响应式 padding top 工具，重置浏览器大小查看效果。</p>
  <div class="pt-sm-5 bg-warning">Padding Top 5 on SM screens</div>
  <div class="pt-md-5 bg-success">Padding Top 5 on MD screens</div>
  <div class="pt-lg-5 bg-danger">Padding Top 5 on LG screens</div>
  <div class="pt-xl-5 bg-primary">Padding Top 5 on XL screens</div>
</div>