要创建内联Flexbox容器，请在Bootstrap中使用d-inline-flex类。
在Bootstrap中使用d-*-inline-flex类在特定屏幕尺寸上设置相同的内联Flexbox容器-
<div class="d-sm-inline-flex bg-warning"> Small </div>
<div class="d-md-inline-flex bg-warning"> Medium </div>
<div class="d-lg-inline-flex bg-warning"> Large </div>
让我们看一个示例，以学习如何在特定屏幕尺寸上创建内联Flexbox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 mt-3"> <h2>Working with Inline Flex</h2> <p>Resize the browser window to check the effect</p> <div class="d-inline-flex bg-primary">d-flex</div> <div class="d-sm-inline-flex bg-warning">d-sm-flex</div> <div class="d-md-inline-flex bg-danger">d-md-flex</div> <div class="d-lg-inline-flex bg-success">d-lg-flex</div> <div class="d-xl-inline-flex bg-secondary">d-xl-flex</div> </div> </body> </html>