#wrapper.at-senran #contents {
  height: 1500px;
  min-height: 100vh;
  background: url("../images/at-senran/bg.jpg") center top ;
  background-size: cover;
  }


#wrapper.at-senran .oizumi {
  position: absolute;
  top: 17px;
  left: 17px;
  width: 107px;
  height: 30px;
  opacity: 0;
  z-index: 10000;
  transition: all ease 300ms 0s;
}


#wrapper.at-senran .oizumi.doShow {
  opacity: 1;
}

#wrapper.at-senran .header {
  background: url("../images/at-senran/bg-header.jpg") center top ;
  background-repeat: repeat-x;
  width: 100%;
  height: 114px;
  opacity: 0;
  transition: all ease 300ms 0s;
}

#wrapper.at-senran .header.doShow {
  opacity: 1;
}

#wrapper.at-senran .header .title {
  position: absolute;
  top: 10px;
  left: calc(50% - 1071px / 2);
  width: 1071px;
  height: 114px;
  opacity: 0;
  z-index: 1000;
  transition: all ease 300ms 0s;
}


#wrapper.at-senran .header .title.doShow {
  opacity: 1;
}

#wrapper.at-senran .container .img1 {
  position: absolute;
  top:30px;
  left: calc(50% - 999px / 2);
  z-index: 120;
  width: 999px;
  opacity: 0;
  transition: all ease 0.5s 0.6s;
  transform: translate(-0, 30px);
}
#wrapper.at-senran .container .img1.doShow {
  opacity: 1;
  transform: translate(0, 0);
}