我知道我来晚了，但你可以试着用填充物把盒子隔开。

<div class="col-md-6 box">
        <div class="inner">Hello</div>
</div>
<div class="col-md-6 box">
        <div class="inner">Hello</div>
</div>

CSS:

.box {
    padding: 0 5px 0 5px;
}
.box .inner {
    background-color: #fff;
}

试一试

<div class="row">

  <div class="col-sm-6">
    <div class="card">
        Content one
    </div>
  </div>

  <div class="col-sm-6">
    <div class="card">
        Content two
    </div>
  </div>

</div>

引导4 -使用嵌套行分离列。

<div class="container">
    <div class="row bg-info p-3">

        <!-- left column -->
        <div class="col-8 ">
            <div class="col-12 bg-light p-3">
                Lorem ipsum dolor sit amet consectetur adipisicing elit. Porro error enim, perferendis rerum, sit laudantium alias esse quas quae mollitia illum suscipit veritatis distinctio facere officia ullam repellendus accusamus odio!
            </div>
        </div>

        <!-- right column -->
        <div class="col-4 ">
            <div class="col-12 bg-light p-3">
                Lorem ipsum dolor sit amet consectetur adipisicing elit. Porro error enim, perferendis rerum, sit laudantium alias esse quas quae mollitia illum suscipit veritatis distinctio facere officia ullam repellendus accusamus odio!
            </div>
        </div>
    </div>
</div>

为了获得列之间特定宽度的间距，我们必须在标准Bootstrap的布局中设置填充。

@import url('https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css'); /* Check breakpoint at http://getbootstrap.com/css/#grid-media-queries */ @media (min-width: 992px) { .space-100-px > .row > .col-md-6:first-child { padding: 0 50px 0 0; /* The first half of 100px */ } .space-100-px > .row > .col-md-6:last-child { padding: 0 0 0 50px; /* The second half of 100px */ } } /* The result will be easier to see. */ .space-100-px img { width: 100%; height: auto; } <div class="container-fluid space-100-px"> <div class="row"> <div class="col-md-6"> <img src="http://placehold.it/450x100?text=Left" alt="Left"> </div> <div class="col-md-6"> <img src="http://placehold.it/450x100?text=Right" alt="Right"> </div> </div> </div>

很简单。你必须添加固体边界右，左col-* 它应该是工作…:)

它看起来像这样:http://i.stack.imgur.com/CF5ZV.png

HTML:

<div class="row">
     <div class="col-sm-3" id="services_block">

     </div>
     <div class="col-sm-3" id="services_block">

     </div>
     <div class="col-sm-3" id="services_block">

     </div>
     <div class="col-sm-3" id="services_block">

     </div>
</div>

CSS:

div#services_block {
   height: 355px;
   background-color: #33363a;
   border-left:3px solid white;
   border-right:3px solid white;
}

您可以使用此处文档中的col-md-offset-*类来实现列之间的间距。间距是一致的，这样所有的列都能正确对齐。为了获得均匀的间距和列大小，我将执行以下操作:

<div class="row">
  <div class="col-md-5"></div>
  <div class="col-md-5 col-md-offset-2"></div>
</div>

在Bootstrap 4中使用:offset-2或offset-md-2