BootStrap

栅格

• 把整体划分为了12格
• 分类

• 响应式

  col-lg-  1170px
  col-md-  970px
  col-sm-  750px

• 非响应式

<div class="col-xs-6" style="background-color: #2aabd2">1</div>
<div class="col-xs-6" style="background-color: #b2dba1">1</div>

• 列偏移

<div class="col-sm-offset-2 col-xs-6" style="background-color: #2aabd2">1</div>

container

  <div class="container">
    <div class="col-sm-9">左边</div>
    <div class="col-sm-3">右边</div>
  </div>  

  <div class="container-fluid">
    <div class="col-sm-9">左边</div>
    <div class="col-sm-3">右边</div>
  </div>