在Bootstrap 4的不同屏幕上拉伸单行项目
使用.align-items-*-stretch类在Bootstrap4的不同屏幕上拉伸单行项目。
如果项目位于特定屏幕尺寸上，则拉伸单行，如下所示：
小屏幕尺寸
<div class="d-flex flex-wrap align-items-sm-stretch bg-secondary" style="height:200px"> </div>
中等屏幕尺寸
<div class="d-flex flex-wrap align-items-md-stretch bg-secondary" style="height:200px"> </div>
大屏幕尺寸
<div class="d-flex flex-wrap align-items-lg-stretch bg-secondary" style="height:200px"> </div>
超大屏幕尺寸
<div class="d-flex flex-wrap align-items-xl-stretch bg-secondary" style="height:200px"> </div>
让我们在Bootstrap4中实现align-items-*-stretch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">
<h1>Align Flex Items on a single row (stretch)</h1>
<div class="d-flex flex-wrap align-items-stretch bg-info" style="height:200px">
<div class="p-2 border">Item 1</div>
<div class="p-2 border">Item 2</div>
<div class="p-2 border">Item 3</div>
<div class="p-2 border">Item 4</div>
</div>
<h2>Small Screen Size</h2>
<div class="d-flex flex-wrap align-items-sm-stretch bg-secondary" style="height:200px">
<div class="p-2 border">Item 1</div>
<div class="p-2 border">Item 2</div>
<div class="p-2 border">Item 3</div>
<div class="p-2 border">Item 4</div>
</div>
<h2>Medium Screen Size</h2>
<div class="d-flex flex-wrap align-items-md-stretch bg-info" style="height:200px">
<div class="p-2 border">Item 1</div>
<div class="p-2 border">Item 2</div>
<div class="p-2 border">Item 3</div>
<div class="p-2 border">Item 4</div>
</div>
<h2>Large Screen Size</h2>
<div class="d-flex flex-wrap align-items-lg-stretch bg-info" style="height:200px">
<div class="p-2 border">Item 1</div>
<div class="p-2 border">Item 2</div>
<div class="p-2 border">Item 3</div>
<div class="p-2 border">Item 4</div>
</div>
<h2>Extra Large Screen Size</h2>
<div class="d-flex flex-wrap align-items-xl-stretch bg-info" style="height:200px">
<div class="p-2 border">Item 1</div>
<div class="p-2 border">Item 2</div>
<div class="p-2 border">Item 3</div>
<div class="p-2 border">Item 4</div>
</div>
</div>
</body>
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