Bootstrap 4 .flex-*-row 类实现

bootstrapweb developmentcss framework更新于 2024/1/24 6:36:17

要针对不同屏幕尺寸(例如大、小、中等)水平设置弹性项目,请使用 flex-*-row 类。

让我们看看哪个 flex-*-row 类适用于不同的屏幕尺寸 −

小屏幕尺寸:flex-sm-row
中屏幕尺寸:flex-md-row
大屏幕尺寸:flex-lg-row

以下是针对小屏幕尺寸水平设置弹性项目的示例 −

<div class="d-sm-flex flex-sm-row bg-primary mb-3">
  <div class="p-2 bg-primary">Audi</div>
  <div class="p-2 bg-warning">BMW</div>
  <div class="p-2 bg-secondary">Benz</div>
</div>

您可以尝试运行以下代码,在 Bootstrap 4 中实现 .flex-*-row 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://ajax.googleapis.com/ajax/libs/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>Flex</h2>
    <p>Resize the browser window to check the effect.</p>
    <h2>Flex Row</h2>
    <div class="d-flex flex-row bg-primary mb-3">
      <div class="p-2 bg-secondary">Audi</div>
      <div class="p-2 bg-warning">BMW</div>
      <div class="p-2 bg-info">Benz</div>
    </div>
    <h2>Flex Row (Small Screen)</h2>
    <div class="d-sm-flex flex-sm-row bg-primary mb-3">
      <div class="p-2 bg-primary">Audi</div>
      <div class="p-2 bg-warning">BMW</div>
      <div class="p-2 bg-secondary">Benz</div>
    </div>
    <h2>Flex Row (Medium Screen)</h2>
    <div class="d-md-flex flex-md-row bg-primary mb-3">
      <div class="p-2 bg-warning">Audi</div>
      <div class="p-2 bg-danger">BMW</div>
      <div class="p-2 bg-primary">Benz</div>
    </div>
    <h2>Flex Row (Large Screen)</h2>
    <div class="d-lg-flex flex-lg-row bg-primary mb-3">
      <div class="p-2 bg-primary">Audi</div>
      <div class="p-2 bg-danger">BMW</div>
      <div class="p-2 bg-info">Benz</div>
    </div>
  </div>

 </body>
</html>

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