Place content of Modal Window Vertically - html

Question

It appears that I either have trouble spacing correctly or making things stack either horizontally or vertically.
Still new to Bootstrap but I'm pretty happy with what I got so far. Currently I have this for my login form:
I would like to make my contact form the same way, vertically stacked. But here is what I end up with:
<div id="contact-modal" class="modal fade" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Contact me!</h4>
</div>
<div class="modal-body">
<p>Got any Feedback (Positive and/or Negative) or any ideas? Please let us know!</p>
<p>Your email is only used to contact you back with an answer. We will never spam your email (Promise!)</p>
<form role="form" class="navbar-form" action="" method="post">
<span>Your Name</span>
<label for="contact-name" class="sr-only">Your Name</label>
<input type="text" id="contact-name" class="form-control" placeholder="Your Name" required>
<span>Your Email</span>
<label for="contact-email" class="sr-only">Your Email</label>
<input type="email" id="contact-email" class="form-control" placeholder="Your Email" required>
<span>Your Message</span>
<textarea id="contact-message" class="form-control" placeholder="Your message..." required></textarea>
<button type="button" class="btn btn-success btn-bg" id="contact-submit-btn"><span>Submit</span></button>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-danger btn-bg" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>

Answer 1

Use form-groups. Just make sure you wrap your input in <div class="form-group"></div>:
<form role="form">
<div class="form-group">
<label for="email">Email address:</label>
<input type="email" class="form-control" id="email">
</div>
<div class="form-group">
<label for="pwd">Password:</label>
<input type="password" class="form-control" id="pwd">
</div>
<div class="checkbox">
<label><input type="checkbox"> Remember me</label>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>