.slick__bg {
  padding-bottom: 590px;
  background-size: auto;
  background-repeat: no-repeat;
  background-position: top center;
}
.slick__bg01 {
  background-image: url(../images/main_slide_01.jpg);
}
.slick__bg02 {
  background-image: url(../images/main_slide_02.jpg);
}
.slick__bg03 {
  background-image: url(../images/main_slide_03.jpg);
}
.slick__bg04 {
  background-image: url(../images/main_slide_04.jpg);
}