How to make a bootstrap modal fade in from the bottom?

Question

How do you make a modal fade in from the bottom to the top?

By default it starts at the top of the page. I want to get it down in the footer.

Is there a class of its own for this? I modify the CSS?

How to do this?

<div class="modal fade bs-example-modal-lg" id="myModal2" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel"> ABOUT </h4>
      </div>
      <div class="modal-body">
        CONTEÚDO
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>

      </div>
    </div>
  </div>
</div>

Answer 1

By default, here is the styling that is used to make the modal fade in from the top:

.modal.fade .modal-dialog {
  transform: translate3d(0, -25%, 0);
}
.modal.in .modal-dialog {
  transform: translate3d(0, 0, 0);
}

If you want it to fade in from the bottom, change the -25% value to something like 100vh or 100%:

Example Here

.modal.fade .modal-dialog {
  transform: translate3d(0, 100vh, 0);
}

.modal.in .modal-dialog {
  transform: translate3d(0, 0, 0);
}