Bootstrap 4在col div内部对齐元素 [英] Bootstrap 4 align elements right inside a col div

问题描述

我的问题很简单，但是我没有找到合适的方法(我的意思是不在相对位置容器内使用子元素的绝对定位)在Bootstrap 4中实现这一目标.

My question is pretty simple but I don't find a proper way (I mean not use absolute positionning of sub elements inside a relative position container) to achieve this in Bootstrap 4.

我有一排带有col-8和col-4的行.我在col-4中的内容必须右对齐，以便其内容在右边界.

I have a row with a col-8 and a col-4. My content in col-4 must be right aligned so its content is at the right border.

<h1 class="col-md-8">Applications portfolio</h1>

  <div class="btn-group col-md-4" role="group">
    <p class="float-right">
      <a class="btn btn-secondary btn-md" href="#">
        <i class="fa fa-plus" aria-hidden="true"></i> Creation</a>
      <a class="btn btn-md btn-secondary" href="#">
        <i class="fa fa-flag" aria-hidden="true"></i> Report</a>
    </p>
  </div>

这是一个Codepen:

Here is a codepen:

https://codepen.io/anon/pen/QpzVgJ

我希望我的两个按钮在col-4内正确对齐.

I want my two buttons to right align within the col-4.

如何在Bootstrap 4中正确对齐列中的正确元素?

推荐答案

使用 ml-auto 将按钮向右推...

Use ml-auto to push the buttons to the right...

https://codepen.io/anon/pen/evbLQN

<div class="btn-group col-md-4" role="group">
    <p class="ml-auto">
      <a class="btn btn-secondary btn-md" href="#">
        <i class="fa fa-plus" aria-hidden="true"></i> Creation</a>
      <a class="btn btn-md btn-secondary" href="#">
        <i class="fa fa-flag" aria-hidden="true"></i> Report</a>
    </p>
</div>

另一种选择是从col-md-4中删除btn-group，然后 float-right 将按预期工作. Bootstrap 4中的pull-right类已由 float-right 替换.

Another option is to remove the btn-group from the col-md-4, and then float-right will work as expected. The pull-right class was replaced by float-right in Bootstrap 4.

<section class="row">
  <h1 class="col-md-8">Applications portfolio</h1>

  <div class="col-md-4" role="group">
    <p class="float-right">
      <a class="btn btn-secondary btn-md" href="#">
        <i class="fa fa-plus" aria-hidden="true"></i> Creation</a>
      <a class="btn btn-md btn-secondary" href="#">
        <i class="fa fa-flag" aria-hidden="true"></i> Report</a>
    </p>
  </div>
</section>

---

PS-为防止在Codepen中看到水平滚动条，请确保将.row放在container-fluid内部.另外，通常 col-*用于包含内容，并且不应应用于其他组件/元素.因此，例如，如果您想使用btn-group ..

---

PS - To prevent the horizontal scrollbar visible in your Codepen, make sure the .row is placed inside a container-fluid. Also, generally col-* are used to contain content, and shouldn't be applied to other components/elements. So, for example if you wanted to use the btn-group..

<div class="container-fluid">
    <section class="row">
        <div class="col-md-8">
            <h1>Applications portfolio</h1>
        </div>
        <div class="col-md-4">
            <div class="btn-group float-right mt-2" role="group">
                <a class="btn btn-secondary btn-md" href="#">
                    <i class="fa fa-plus" aria-hidden="true"></i> Creation</a>
                <a class="btn btn-md btn-secondary" href="#">
                    <i class="fa fa-flag" aria-hidden="true"></i> Report</a>
            </div>
        </div>
    </section>
</div>

http://www.codeply.com/go/8OYDK5D8Db

相关: div类中的右对齐元素具有引导程序4

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