在 Bootstrap 4 中,在不同的螢幕上從起點對齊各行專案


在 Bootstrap 4 中使用 .align-items-*-start 類,從起點對齊不同螢幕上的各行專案。

針對不同的螢幕尺寸,按如下方式使用該類 −

在小螢幕上對齊各行專案

<div class="d-flex flex-wrap align-items-sm-start bg-secondary" style="height:200px">
  <div class="p-2 border">Product 1</div>
  <div class="p-2 border">Product 2</div>
  <div class="p-2 border">Product 3</div>
  <div class="p-2 border">Product 4</div>
</div>

在中等螢幕上對齊各行專案

<div class="d-flex flex-wrap align-items-md-start bg-primary" style="height:200px">
  <div class="p-2 border">Product 1</div>
  <div class="p-2 border">Product 2</div>
  <div class="p-2 border">Product 3</div>
  <div class="p-2 border">Product 4</div>
</div>

在大螢幕上對齊各行專案

<div class="d-flex flex-wrap align-items-lg-start bg-info" style="height:200px">
  <div class="p-2 border">Product 1</div>
  <div class="p-2 border">Product 2</div>
  <div class="p-2 border">Product 3</div>
  <div class="p-2 border">Product 4</div>
</div>

以下是一個示例,說明如何從起點對齊不同螢幕上的各行專案 −

示例

即時演示

<!DOCTYPE html>
<html>
  <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">
      <h1>Align Flex Items on a single row</h1>
      <div class="d-flex flex-wrap align-items-start bg-primary" style="height:200px">
        <div class="p-2 border">Product 1</div>
        <div class="p-2 border">Product 2</div>
        <div class="p-2 border">Product 3</div>
        <div class="p-2 border">Product 4</div>
      </div>
      <h2>Small Screen Size</h2>
      <div class="d-flex flex-wrap align-items-sm-start bg-secondary" style="height:200px">
        <div class="p-2 border">Product 1</div>
        <div class="p-2 border">Product 2</div>
        <div class="p-2 border">Product 3</div>
        <div class="p-2 border">Product 4</div>
      </div>
      <h2>Medium Screen Size</h2>
      <div class="d-flex flex-wrap align-items-md-start bg-primary" style="height:200px">
        <div class="p-2 border">Product 1</div>
        <div class="p-2 border">Product 2</div>
        <div class="p-2 border">Product 3</div>
        <div class="p-2 border">Product 4</div>
      </div>
      <h2>Large Screen Size</h2>
      <div class="d-flex flex-wrap align-items-lg-start bg-info" style="height:200px">
        <div class="p-2 border">Product 1</div>
        <div class="p-2 border">Product 2</div>
        <div class="p-2 border">Product 3</div>
        <div class="p-2 border">Product 4</div>
      </div>
   </div>

</body>
</html>

更新於: 15-6月-2020

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