用绿色轮廓的Bootstrap 4按钮设置积极的成功动作
要在指示积极行动的按钮上设置轮廓，您需要使用Bootstrap中的btn-outline-success类。
设置方法如下：
<button type="button" class="btn btn-outline-success"> More (Green Outline) </button>
您可以尝试运行以下代码以实现btn-outline-success类-
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>
<h2>Python</h2>
<p>The following are the Python Technologies :</p>
<ul class = "list-group">
<li class = "list-group-item">Jython</li>
<li class = "list-group-item">WxPython</li>
</ul>
<p>For more, click below:</p>
<button type="button" class="btn btn-outline-success">More (Green Outline)</button>
</body>
</html>