#banner_area .slide_img_001 {
  width: 100% !important;
  height: 81vh !important;
  min-height: 803px;
  background: url("../images/slider/img_001.jpg") top center;
  background-size: cover;
  position: relative;
}

#banner_area .slide_img_002 {
  width: 100% !important;
  height: 81vh !important;
  min-height: 803px;
  background: url("../images/slider/img_002.jpg") top center;
  background-size: cover;
  position: relative;
}

#banner_area .slide_img_003 {
  width: 100% !important;
  height: 81vh !important;
  min-height: 803px;
  background: url("../images/slider/img_003.jpg") top center;
  background-size: cover;
  position: relative;
}

#banner_area .slide_img_004 {
  width: 100% !important;
  height: 81vh !important;
  min-height: 803px;
  background: url("../images/slider/img_004.jpg") top center;
  background-size: cover;
  position: relative;
}

@media screen and (max-width: 766px) {
  #banner_area .slide_img_001,
  #banner_area .slide_img_002,
  #banner_area .slide_img_003,
  #banner_area .slide_img_004 {
    background: url("../images/slider/slider_mobile.jpg") top center;
  }
}