在Bootstrap 4中将三列col-md-3列居中 [英] Center three col-md-3 columns in Bootstrap 4

问题描述

有没有一种方法可以让三列col-md-3列居中.偏移不起作用，因为我必须将第一列偏移一半.那么还有另一种方法吗?

Is there a way to have three col-md-3 columns and center them. Offset doesn't work, because I'd have to offset the first column for a column and a half. So is there another way to do this?

这是代码的概要:

.col-md-3 {
  background-color: #e2e2e2;
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-beta.2/css/bootstrap.css" rel="stylesheet" />

<div class="container">
  <div class="row">
    <div class="col-md-3">First column</div>
    <div class="col-md-3">Second column</div>
    <div class="col-md-3">Third column</div>
  </div>
</div>

我设法在SO上找到的答案都与Bootstrap 3及更低版本有关.并且不能与Bootstrap 4一起使用.有人可以看一下并让我知道吗?

The answers I managed to find on SO were all related to Bootstrap 3 and lower. And didn't work with Bootstrap 4. Can someone take a look and let me know?

推荐答案

Flexbox实用程序类是您的朋友.
在这种情况下，您可以在.row上使用justify-content-center.

The Flexbox utility classes are your friend.
You can use justify-content-center on .row in this case.

.row {
    background-color: lavender;
}

.col-md-3 {
    background-color: gray;
}

<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-3">First column</div>
        <div class="col-md-3">Second column</div>
        <div class="col-md-3">Third column</div>
    </div>
</div>


<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet"/>

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