mdb-ui-kit/scss/_modal.scss

//
// Modals
// Material Design element Dialogs
// --------------------------------------------------
.modal-content {
  @include shadow-z-5();
  border: 0;
  border-radius: $border-radius;
  // Modal header
  // Top section of the modal w/ title and dismiss
  .modal-header {
    padding: 24px 24px 0;
    border-bottom: 0;
  }
  // Modal body
  // Where all modal content resides (sibling of .modal-header and .modal-footer)
  .modal-body {
    padding: 24px 24px 16px;
  }
  // Footer (for actions)
  .modal-footer {
    padding: 7px;
    border-top: 0;
    button {
      width: auto;
      padding-right: 16px;
      padding-left: 16px;
      margin: 0;
      &.pull-left {
        position: relative;
        left: -5px;
        padding-right: 5px;
        padding-left: 5px;
      }
    }
    button + button {
      margin-bottom: 16px;
    }
  }
  .modal-body + .modal-footer {
    padding-top: 0;
  }
}

.modal-backdrop {
  background: rgba($black, 0.3);
}