右上角的引导按钮

我有这样的引导页面

<div class='container'>
<div class='row'>
<div class='col-sm-6 col-md-4 col-lg-3'>
<p>column1</p>
</div>
<div class='col-sm-6 col-md-4 col-lg-3'>
<p>column2</p>
</div>
<div class='col-sm-6 col-md-6 col-lg-4'>
<p>column3</p>
</div>
<div class='col-sm-2 col-md-2 col-lg-1'>
<button type="button">Button</button>
</div>
</div>
</div>

当电脑看起来像这样

1 row
--------------------------------
|column1|column2|column3|button|
--------------------------------

但我想在 Ipad 时这样改变水平显示模式 (1024px(

2 rows
--------------------------------
|column1|               |button|
--------------------------------
|column2|column3|
--------------------------------

这可能吗？我尝试使用右拉、文本右、对齐内容结束但它没有用。

这是针对您问题的纯引导解决方案，只需使用现有类，我给出了BG颜色仅用于演示目的，您可以将其删除。享受

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<div class='container'>
<div class='row'>
<div class='col-xl-4 col-6' style="background-color: red">
<p>column1</p>
</div>

<div class='col-xl-1 col-6 order-xl-3 text-right text-xl-left' style="background-color: yellow">
<button type="button">Button</button>
</div>
<div class='col-xl-7 order-xl-2' style="background-color: green">
<div class="row">
<div class='col-6'>
<p>column2</p>
</div>
<div class='col-6'>
<p>column3</p>
</div>
</div>
</div>
</div>
</div>

您可以根据需要更改结构按钮和列 1 在同一行中，列 2 ， 3 在同一行中，如下所示。

<div class='container'>
<div class='row'>
<div class='col-sm-6 col-md-4 col-lg-3'>
<p>column1</p>
</div>
<div class='col-sm-2 col-md-2 col-lg-offset-8 col-lg-1'>
<button type="button">Button</button>
</div>
</div>
<div class='row'>
<div class='col-sm-6 col-md-4 col-lg-3'>
<p>column2</p>
</div>
<div class='col-sm-6 col-md-6 col-lg-4'>
<p>column3</p>
</div>
</div>

<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Your title here</title>
</head>
<div class="row">
<div class="col-sm-12">
<a href="#" class="float-right btn btn-primary">**Button**</a>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>

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