在Bootstrap中使用border-warning类将橙色边框设置为元素。
要添加橙色边框,请将div设置为-
<div class="mystyle border border-warning"> Warning (Orange border) </div>
您可以尝试运行以下代码以实现border-warning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> <style> .new { width: 200px; height: 150px; margin: 10px; } </style> </head> <body> <div class="container"> <p>The following is a Rectangle:</p> <div class="new border border-warning">Warning (Orange border)</div> </div> </body> </html>