div.header_obi {
  width: 100%;
  position: relative;
}
div.header_obi h2 {
  margin: 0;
  padding: 0;
}
div.header_obi h2 a {
  display: flex;
  text-align: center;
  height: 64px;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  font-size: 20px;
  font-family: "Noto Sans JP", sans-serif;
  letter-spacing: 2px;
  transition: 0.4s;
  text-decoration: none;
}
div.header_obi h2 a:hover {
  background: rgba(0, 0, 0, 0.7);
}
@media (max-width: 640px) {
  div.header_obi h2 a {
    font-size: 13px;
    height: 40px;
  }
}
div.header_obi h2 a.bg_black {
  background: rgb(0, 0, 0);
}
div.header_obi h2 a.bg_black:hover {
  background: rgba(0, 0, 0, 0.2);
  color: #000;
}
div.header_obi img {
  width: 100%;
}
div.header_obi.obi20220708 h2 {
  background: url("https://osmosis.itembox.design/item/img/obi/obi_bg20220708.jpg");
  background-size: cover;
  background-position: center;
}
div.header_obi.obi20220708 h2 a {
  border: 3px double #fff;
}/*# sourceMappingURL=obi2022.css.map */