在Bootstrap 3中的面板之间添加空格

Question

我正在使用Bootstrap 3.0,似乎无法弄清楚如何在面板之间添加填充/空间.

<div class="row">
  <div class="col-xs-4 panel">
    <div class="panel-body">
      <h4>First Cell</h4>
    </div>
  </div>
  <div class="col-xs-4 panel">
    <div class="panel-body">
      <h4>Second Cell</h4>
    </div>
  </div>
  <div class="col-xs-4 panel">
    <div class="panel-body">
      <h4>Third Cell</h4>
    </div>
  </div>
</div>

我已经尝试添加一个类并将宽度设置为30%,但它只有在你有两个面板并向右拉动时才有效.如果我添加一个边距,那么它会关闭响应,最后一个单元格会下降到下一行.

我怎样才能相应地增加面板之间的差距？

Answer 1

我倾向于不合并.panel和.col*:

http://jsfiddle.net/isherwood/xTc7a/1/

<div class="row">
    <div class="col-xs-4">
        <div class=" panel">
            <div class="panel-body">
                 <h4>First Cell</h4>

            </div>
        </div>
    </div>
    <div class="col-xs-4">
        <div class=" panel">
            <div class="panel-body">
                 <h4>Second Cell</h4>

            </div>
        </div>
    </div>
    <div class="col-xs-4">
        <div class=" panel">
            <div class="panel-body">
                 <h4>Third Cell</h4>

            </div>
        </div>
    </div>
</div>