答案 0 :(得分:1)
在Bootstrap列的网格系统中,只能用于划分行,但是你可以在一列中创建两行,如下所示
.block {
background: gray;
min-height: 100px;
height: 100%;
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet" />
<div class="container" style="width:100%">
<div class="row">
<div class="col-sm-4">
<div class="row">
<div class="col-sm-12">
<div class="block">
A
</div>
</div>
</div>
<div class="row">
<div class="col-sm-12">
<div class="block" style="background: red">
B
</div>
</div>
</div>
</div>
<div class="col-sm-8">
<div class="block">
C
</div>
</div>
</div>
</div>
&#13;
也许这可以满足您的需求,但通常类似于在左栏中添加两个块元素