引导4列浮动风格像引导3是可能的吗？

Question

我从引导4开始开发，现在我发现了这个问题:当使用引导3列系统时，因为它使用浮点数，我们可以在一行中插入多个列，它会根据指定的“col”填充空格，如下所示：

http://codepen.io/seltix/pen/QpXvRJ

 -------   -------   -------
| COL 1 | | COL 2 | | COL 3 |
|       |  -------   -------
|       | | COL 4 | | COL 5 |
 -------   -------   -------

<div class="container-fluid">
  <div class="row">
    <div class="col-sm-6 panel height-1">
      <div class="bg-danger">this box is a slider with fixed col-6 width and fixes 2 blue boxes height</div>
    </div>
    <div class="col-sm-3 panel height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 panel height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 panel height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 panel height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 panel height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
</div>

但是，对于引导4 flex系统，每个元素使用行的全部高度，结果如下：

http://codepen.io/seltix/pen/PprmVE

 -------   -------   -------
| COL 1 | | COL 2 | | COL 3 |
|       |  -------   -------
|       |
 -------   -------
| COL 4 | | COL 5 |
 -------   -------

<div class="container-fluid">
  <div class="row">
    <div class="col-sm-6 card height-1">
      <div class="bg-danger">this box is a slider with fixed col-6 width and fixes 2 blue boxes height</div>
    </div>
    <div class="col-sm-3 card height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 card height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 card height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 card height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
    <div class="col-sm-3 card height-2">
      <div class="bg-info">blue boxes count may change depending on the content.<br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
    </div>
</div>

我已经谷歌它和搜索引导4文档，但我找不到任何解决方案。最接近的是卡片列，一个类似砖石的例子，但我认为它不适合这个例子，因为我不能指定列/卡片的宽度。谢谢!

Answer 1

是的，您可以使用实用工具类在Bootstrap 4中获得3.x网格“浮动”行为。

使用d-block将display:flex中的行更改为display:block。然后在每个项目上使用float-left。

http://www.codeply.com/go/BmN6ZYQdGm

 <div class="row d-block">
        <div class="col-md-6 float-left card height-1">
            <div class="bg-danger">1
                <br>this box is a slider with fixed col-6 width and fixes 2 blue boxes height</div>
        </div>
        <div class="col-md-3 float-left card height-2">
            <div class="bg-info">2
                <br>blue boxes count may change depending on the content.
                <br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
        </div>
        <div class="col-md-3 float-left card height-2">
            <div class="bg-info">3
                <br>blue boxes count may change depending on the content.
                <br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
        </div>
        <div class="col-md-3 float-left card height-2">
            <div class="bg-info">4
                <br>blue boxes count may change depending on the content.
                <br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
        </div>
        <div class="col-md-3 float-left card height-2">
            <div class="bg-info">5
                <br>blue boxes count may change depending on the content.
                <br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
        </div>
        <div class="col-md-3 float-left card height-2">
            <div class="bg-info">6
                <br>blue boxes count may change depending on the content.
                <br>if there are only 1 blue box the col size will change from 3 to 6 in the PHP</div>
        </div>
    </div>

http://www.codeply.com/go/BmN6ZYQdGm

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