<div class="row">
<div class="col-xs-12  col-md-4">
[text* your-name placeholder "First Name"]
</div>
<div class="col-xs-12  col-md-4">
[text* last-name placeholder "Last Name"]
</div>
</div>
<div class="row">
<div class="col-xs-12  col-md-4">
[email* your-email placeholder "E-mail address"]
</div>
<div class="col-xs-12  col-md-4">
[tel* your-phone placeholder "Phone Number"]
</div>
</div>
<div class="row">
<div class="col-xs-12  col-md-8">
[text your-subject placeholder "Subject"]
</div>
<div class="col-xs-12">
[textarea your-message placeholder "Message"]
[submit class:btn class:btn-primary "SEND MESSAGE"]
</div>
</div>