Rounded images in Journal style

brandofamily

Does anyone know how to do Rounded images in Journal style?

brandofamily

I got the roundedness but I cannot get a shadow...

.sm-gallery-journal .sm-tile img {
  border-radius: 25px;
   -webkit-mask-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAA5JREFUeNpiYGBgAAgwAAAEAAGbA+oJAAAAAElFTkSuQmCC);
-moz-border-radius: 25px;
-webkit-border-radius: 25px;
  overflow:hidden;
}