se-in;
      -moz-transition: opacity 400ms ease-in;
      transition: opacity 400ms ease-in;
      pointer-events: none;
    }

    .modal-open {
      opacity: 1;
      pointer-events: auto;
      overflow-y: auto;
    }

    .modal-dialog {
      position: relative;
      width: auto;
      margin: 10px;
    }

    @media (min-width: 576px) {
      .modal-dialog {
        max-width: 600px;
        margin: 30px auto;
      }
    }

    .modal-content {
      position: relative;
      display: -webkit-box;