本文实例为大家分享了bootstrap栅格系统的具体代码，供大家参考，具体内容如下
<Meta charset="utf-8">
<Meta http-equiv="X-UA-Compatible" content="IE=edge">
<Meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
栅格系统
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="container">
<div class="row">
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a
<div class="col-lg-3 col-md-4 a">a