<!-- Button trigger modal -->

<button

  type="button"

  class="btn btn-primary"

  data-mdb-toggle="modal"

  data-mdb-target="#exampleModal"

>

  Launch demo modal

</button>

​

<button

  type="button"

  class="btn btn-primary"

  data-mdb-toggle="modal"

  data-mdb-target="#exampleModal"

>

  <i class="fa fa-envelope pe-none"></i>

</button>

​

<!-- Modal -->

<div

  class="modal fade"

  id="exampleModal"

  tabindex="-1"

  aria-labelledby="exampleModalLabel"

  aria-hidden="true"

>

  <div class="modal-dialog">

    <div class="modal-content">

      <div class="modal-header">

        <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>

        <button

          type="button"

          class="btn-close"

          data-mdb-dismiss="modal"

          aria-label="Close"

        ></button>

      </div>

      <div class="modal-body">...</div>

      <div class="modal-footer">

        <button type="button" class="btn btn-secondary" data-mdb-dismiss="modal">

          Close

        </button>

        <button type="button" class="btn btn-primary">Save changes</button>

      </div>

    </div>

  </div>

</div>