在Bootstrap 4中垂直显示弹性项目
要垂直显示flex项目，请使用Bootstrap4中的flex-column类-
<div class="d-flex flex-column mb-3">
现在在其中设置弹性项目-
<div class="d-flex flex-column mb-3"> <div class="p-2 bg-info">One</div> <div class="p-2 bg-warning">Two</div> <div class="p-2 bg-info">Three</div> <div class="p-2 bg-danger">Four</div> <div class="p-2 bg-info">Five</div> </div>
让我们看一个例子来学习如何学习如何显示flex-column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>
<div class="container mt-3">
<h2>Example of Flex Column</h2>
<p>Stating the usage of flex column class:</p>
<div class="d-flex flex-column mb-3">
<div class="p-2 bg-info">One</div>
<div class="p-2 bg-warning">Two</div>
<div class="p-2 bg-info">Three</div>
<div class="p-2 bg-danger">Four</div>
<div class="p-2 bg-info">Five</div>
</div>
</div>
</body>
</html>