.archive {
  display: none;
}
.archive.active {
  display: block;
}
.archive_btn {
  display: block;
  width: 9em;
  margin: 10px auto 10px;
  padding: 10px 0;
  text-align: center;
  color: #fff;
  border: 2px solid #7c0036;
  border-radius: 5px;
  background: #7c0036;
  font-size: 12px;
  line-height: 1;
}
.archive_btn.active {
  color: #7c0036;
  background: #fff;
}