.tab {
  max-width: 975px;
  margin: 0 auto;
}

.tab__menu {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 50px;
  padding: 0;
  margin: 0;
}

.tab__menu-item {
  list-style: none;
  width: 200px;
  padding: 8px 5px;
  text-align: center;
  margin-right: 6px;
  background-color: #cdcdcd;
  cursor: pointer;
  transition: all .3s;
}

.tab__menu-item:last-of-type {
  margin-right: 0px;
}

.tab__menu-item.is-active {
  background-color: rgba(0, 153, 68);
  color: #ffffff;
  padding: 8px 5px;
}

.tab__panel {
  width: 100%;
}

.tab__panel-box {
  display: none;
  min-height: 400px;
  padding: 10px 0px;
  border-radius: 10px;
}

.tab__panel-text {
  margin: 1em 0;
}

.tab__panel-box001 { display: none; }
.tab__panel-box002 { display: none; }
.tab__panel-box003 { display: none; }
.tab__panel-box004 { display: none; }
.tab__panel-box005 { display: none; }

.tab__panel-box.is-show {
  display: block;
}