将Bootstrap中的任何元素居中
在Bootstrap中使用.center-block类将元素居中。
您可以尝试运行以下代码来实现.center-block类：
示例
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scripts/jquery.min.js"></script>
<script src = "/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<div class = "container">
<h1>Heading One</h1>
<div class = "center-block" style = "background-color:green;color: white; width:200px;">Text will be in center.</div>
</div>
</body>
</html>