将元素与Bootstrap 4中该行的最高元素的顶部对齐

使用align-top类将元素与行上最高元素的顶部对齐。

像这样对齐元素-

<span class="align-top">
  Top Alignment
</span>

让我们看一个在Bootstrap 4中实现align-top类的示例-

示例

<!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="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
    <script src="https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
  </head>
<body>
  <div class="container">
    <h2>Example</h2>
    <p>This is demo text<p>
    <span class="align-baseline">Demo Baseline</span>
    <span class="align-top">Top Alignment</span>
    <span class="align-middle">Middle Alignment</span>
    <span class="align-bottom">Bottom Alignment</span>
  </div>

</body>
</html>