在Bootstrap中使用.d-block类创建块元素。
d-block类的设置如下面的代码片段所示-
<span class="d-block bg-primary"> block </span>
您可以尝试运行以下代码来实现d-block类-
<!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 mt-3"> <h2>Creating Blocks</h2> <p>Resize the browser to check the effect.</p> <span class="d-block bg-primary"> block </span> <span class="d-sm-block bg-primary"> block on small screen </span> </div> </body> </html>