bootstrap row sm code example
Example 1: bootstrap grid 2 rows
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
<div class="row">
<div class="col-md-4">
<div class="well">1
<br/>
<br/>
<br/>
<br/>
<br/>
</div>
</div>
<div class="col-md-8">
<div class="row">
<div class="col-md-6">
<div class="well">2</div>
</div>
<div class="col-md-6">
<div class="well">3</div>
</div>
</div>
<div class="row">
<div class="col-md-6">
<div class="well">4</div>
</div>
<div class="col-md-6">
<div class="well">5</div>
</div>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4">
<div class="well">6</div>
</div>
<div class="col-md-4">
<div class="well">7</div>
</div>
<div class="col-md-4">
<div class="well">8</div>
</div>
</div>
Example 2: bootstrap grid
<div class="container">
<div class="row">
<div class="col-sm">
One of three columns
</div>
<div class="col-sm">
One of three columns
</div>
<div class="col-sm">
One of three columns
</div>
</div>
</div>
Example 3: row class in bootstrap
<div class="row">
<div class="col-md-6"></div>
<div class="col-md-4"></div>
<div class="col-md-2"></div>
</div>
Example 4: bootstrap grid class
col-12 col-sm-4 col-md-3 col-lg-12 col-xl-12
Example 5: .row bootstrap
.row{
display: flex;
flex-wrap: wrap;
margin-right: -15px;
margin-left: -15px;
}