JSFiddle - React, Tailwind, and code Playground
HTML
<link rel="stylesheet" href="http://getbootstrap.com/dist/css/bootstrap.min.css">
<form role="form">
<div class="form-group">
<div class="pull-left col-xs-9">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Enter email">
</div>
<span class="col-xs-3">months<span>
</div>
</form>
CSS
span{
margin-top: 25px;
}