Bootstrap modal

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>

<div class="modal" tabindex="-1" role="document" aria-labelledby="myModalLabel">
      <div class="modal-dialog">
        <div class="modal-content">

          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
            <h4 class="modal-title" id="myModalLabel">Modal Heading</h4>
          </div>
          <div class="modal-body">
            <h4>Head in a modal</h4>
            <p>This is the modal</p>
          </div>
          <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            <button type="button" class="btn btn-primary">Save changes</button>
          </div>

        </div><!-- /.modal-content -->
      </div><!-- /.modal-dialog -->
    </div>