.bg {
  height: 72vh;
  min-height: 200px;
  background-image: url(http://petofi200.hu/images/kapcsolat_htt.png);
  background-position: top center;
  background-repeat: no-repeat;
  background-attachment: inherit;
  background-size: fixed;
  background-color: #000;
}
.szlog {
    position: fixed;
    bottom: 0px;
    right: 0;
    text-align: right;
    z-index: 0;
    height: 224px;
}
.erfa {
    position: fixed;
    bottom: 0px;
    right: 0;
    text-align: right;
    z-index: 0;
    height: 150px;
}