.main__1 {
  display: block;
  display: flex;
  width: 100%;
  height: calc(100vh - var(--header__height) + 6px);
  background: rgb(240, 240, 240);
}
.main__1__wrap {
  display: flex;
  width: 100%;
  justify-content: center;
  align-items: center;
}
.main__1__wrap__txt {
  font-size: 30px;
  padding-left: 10px;
}
.main__1__wrap__txt span {
  display: inline-block;
}
.main__1__visible {
  display: none;
}
.main__1__visible:checked ~ .main .main__1__wrap {
  position: fixed;
  top: calc(var(--header__height) + 6px);
  height: calc(100vh - var(--header__height) + 6px);
  left: 0;
  z-index: 1;
}