twitter-bootstrap - 垂直对齐折叠 Bootstrap 行上的内容

Question

我在一行中有两列，并且两列也包含一行。如果页面宽度达到“xs”断点，左列的行会将其列堆叠在一起。

右列的高度大于左列的高度。这会导致左栏底部出现大量空白区域。

我想让左栏在右栏创建的可用空间上展开堆叠的栏。

Bootstrap4 的类 justify-content-between 和 css 属性 justify-content: space-between; 似乎是一个不错的选择，但我不知道如何在这种情况下使用它们。

帮助将不胜感激，谢谢!

fiddle here和下面的片段:

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

<div class="container">
  <div class="row">

    <!-- left column -->
    <div class="col-6">
      <div class="row">
        <div class="col-12 col-md-4">column 1</div>
        <div class="col-12 col-md-4">column 2</div>
        <div class="col-12 col-md-4">column 3</div>
      </div>
    </div>

    <!-- right column -->
    <div class="col-6">
      <div class="row">
        <div class="col-12">
          <p>
            imagine this col was really tall, and I wish the columns one, two, and three from the left col would justify between themselves to match the overall height of this column
          </p>
        </div>
      </div>
    </div>

  </div>
</div>

Answer 1

您只需将 h-100 类添加到第一列中的 row 元素 - 请参见下面的演示:

.container > .row > .col-6 > .row > div {
  border: 1px solid #ddd; /* border for illustration */
}

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

<div class="container">
  <div class="row">

    <!-- left column -->
    <div class="col-6">
      <div class="row h-100"> <!-- <= added h-100 class here -->
        <div class="col-12 col-md-4">column 1</div>
        <div class="col-12 col-md-4">column 2</div>
        <div class="col-12 col-md-4">column 3</div>
      </div>
    </div>

    <!-- right column -->
    <div class="col-6">
      <div class="row">
        <div class="col-12">
          <p>
            imagine this col was really tall, and I wish the columns one, two, and three from the left col would justify between themselves to match the overall height of this column
          </p>
        </div>
      </div>
    </div>

  </div>
</div>