Here is the Contact Form 7 template form for the Contact page.
<div class="row">
<div class="col-md-6">
<div class="form-group">
[text* your-name placeholder "Your name*"]
</div>
</div>
<div class="col-md-6">
<div class="form-group">
[email* your-email placeholder "Your email*"]
</div>
</div>
<div class="col-md-6">
<div class="form-group">
[number* your-number placeholder "Your phone number*"]
</div>
</div>
<div class="col-md-6">
<div class="form-group">
[text your-website placeholder "Your website(optional)"]
</div>
</div>
<div class="col-12">
<div class="form-group">
[textarea your-message cols:30 rows:10 placeholder "Your Message"]
</div>
</div>
<div class="col-12">
<button type="submit" class="btn-one d-block w-100">Submit Now</button>
</div>
</div>