.map_wrap {
  position: relative;
}

.map_link .btn_01,
.map_link .btn_02,
.map_link .btn_03,
.map_link .btn_04,
.map_link .btn_05,
.map_link .btn_06 {
  position: absolute;
  margin-top: 0;
}

.btn_01 {
  top: 50.8%;
  left: 15%;
}

.btn_02 {
  top: 77%;
  left: 19%;
}