在Bootstrap 4中垂直显示和反转Flex项目
flex-column-reverse用于显示具有垂直方向的反向弹性项目。如以下代码段所示，添加flex-column-reverse类-
<div class="d-flex flex-column-reverse">
之后，在其中添加flex项目-
<div class="d-flex flex-column-reverse"> <div class="p-2 bg-secondary">Demo 1</div> <div class="p-2 bg-danger">Demo 2</div> <div class="p-2 bg-info">Demo 3</div> </div>
您可以尝试运行以下代码以垂直和反向显示弹性项目-
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>
<div class="container mt-3">
<h2>Implementing Column Reverse</h2>
<div class="d-flex flex-column-reverse">
<div class="p-2 bg-secondary">Demo 1</div>
<div class="p-2 bg-danger">Demo 2</div>
<div class="p-2 bg-info">Demo 3</div>
</div>
</div>
</body>
</html>