Bootstrap 4 .flex-*-column 类


在 Bootstrap 中使用 .flex-*-column 类可在不同的屏幕尺寸上垂直显示 flex 项

在小、中、大等屏幕尺寸上垂直设置它。让我们在小和中屏幕尺寸上看看它

小屏幕尺寸

<p>Flex on different screen size (Small)</p>
<div class="d-flex flex-sm-column mb-3">
  <div class="p-2 bg-warning">One</div>
  <div class="p-2 bg-danger">Two</div>
  <div class="p-2 bg-secondary">Three</div>
</div>

中屏幕尺寸

<p>Flex on different screen size (Medium)</p>
<div class="d-flex flex-md-column mb-3">
  <div class="p-2 bg-warning">One</div>
  <div class="p-2 bg-danger">Two</div>
  <div class="p-2 bg-secondary">Three</div>
</div>

以下是实现我在上面显示的 flex-*-column 用法的示例 -

示例

真实演示

<!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>Example</h2>
    <p>Default </p>
    <div class="d-flex flex-column mb-3">
      <div class="p-2 bg-primary">One</div>
      <div class="p-2 bg-secondary">Two</div>
      <div class="p-2 bg-info">Three</div>
    </div>
    <p>Flex on different screen size (Small)</p>
    <div class="d-flex flex-sm-column mb-3">
      <div class="p-2 bg-warning">One</div>
      <div class="p-2 bg-danger">Two</div>
      <div class="p-2 bg-secondary">Three</div>
    </div>
    <p>Flex on different screen size (Medium)</p>
    <div class="d-flex flex-md-column mb-3">
      <div class="p-2 bg-warning">One</div>
      <div class="p-2 bg-danger">Two</div>
      <div class="p-2 bg-secondary">Three</div>
    </div>
    <p>Flex on different screen size (Large)</p>
    <div class="d-flex flex-lg-column mb-3">
      <div class="p-2 bg-primary">One</div>
      <div class="p-2 bg-secondary">Two</div>
      <div class="p-2 bg-danger">Three</div>
    </div>
  </div>
</body>
</html>

更新于: 2020 年 6 月 18 日

370 次浏览

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