Bootstrap 4卡内容物的容器

使用Bootstrap中的card-body类为卡片的内容设置容器-

<div class="card-body">
  Body of card1
</div>

现在将其添加到Bootstrap卡类中-

<div class="card">
  <div class="card-body">
    Body of card1
  </div>
</div>

您可以尝试运行以下代码来设置Bootstrap 4卡内容的容器-

<!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">
    <h3>Heading Three</h3>
    <div class="card">
      <div class="card-body">Body of card1</div>
    </div>
    <div class="card">
      <div class="card-body">Body of card2</div>
    </div>
  </div>
</body>
</html>