Contact Page is built using Contactpage Template with 3 rows. The Backend editor of the page look like this
<div class="form-group row">
<div class="col-xs-12 col-md-6">
<label>First name*</label>
[text* first-name class:input-text first-name]
</div>
<div class="col-xs-12 col-md-6">
<label>Last name*</label>
[text* last-name class:input-text last-name]
</div>
</div>
<div class="form-group row">
<div class="col-xs-12 col-md-6">
<label> Your Email*</label>
[email* your-email]
</div>
<div class="col-xs-12 col-md-6">
<label>Subject</label>
[text subject class:input-text your-subject]
</div>
</div>
<div class="form-group">
<label>Your Message</label>
[textarea your-message]
</div>
<div class="form-group clearfix">
<p>[submit "Send Message"]</p>
</div>