JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<div class="container text-center">
    <div class="row">
    <div class="well flex-row well-lg clearfix">
        <div class="col-xs-12 col-md-6 col-1">
            <div class="alert alert-success">1</div>
        </div>
        
        <div class="col-xs-12 col-md-6 col-3">
            <div class="alert alert-info">3</div>
        </div>
        
        <div class="col-xs-12 col-md-6 col-2">
            <div class="alert alert-warning">2</div>
        </div>
        
        
        <div class="col-xs-12 col-md-6 col-4">
            <div class="alert alert-danger">4</div>
        </div>
    </div>
</div>
</div>

CSS

@media (max-width: 992px){
    .flex-row {
        display:flex;
        flex-direction:row;
        flex-flow: column;
        width: 100%;
    }
	.col-1 {
	  order: 1;
	}
	.col-2 {
	  order: 2;
	}
	.col-3 {
	  order: 3;
	}
	.col-4 {
	  order: 4;
	}
}