在bootstrap中创建3个并排面板

Question

如何在引导程序中并排创建3个面板？我试着用这个运气:

<div class="panel panel-default">
   <div class="panel-heading">Main panel</div>
    <div class="row">
        <div class="col-sm-4">
            <div class="panel panel-default">
                 <div class="panel-heading">panel 1</div>
            </div>
        </div>
        <div class="col-sm-6">
             <div class="panel panel-default">
                 <div class="panel-heading">panel 2</div>
            </div>
        </div>
        <div class="col-sm-2">
            <div class="panel panel-default">
                 <div class="panel-heading">panel 3</div>
            </div>
        </div>
    </div>
   </div>
</div>

结果:

Main panel
    PANEL 1 
    PANEL 2 
    PANEL 3

Answer 1

您可能必须使用列号col-lg-x col-md-x col-sm-x所在x的类.

添加适当的媒体宽度列后,它对我来说很好.您可以查看http://bootply.com/98480.

如果col-sm-x仅添加了类,则它将不适用于视口小于768px的设备.