.tab-btn-area {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 10px;
  place-content: center;
  align-items: flex-end;
  border-bottom: 1px solid #ccc;
}

.tab-btn-area .tab-btn {
  color: #fff;
  background: #ccc;
  display: grid;
  place-content: center;
  height: 28px;
  border-radius: 3px 3px 0 0;
  cursor: pointer;
  transition: 0.5s ease all;
}

.tab-btn-area .tab-btn.current {
  height: 40px;
  margin-top: -12px;
}

.tab-btn-area .tab-btn.news {
  background: #39aec0;
}

.tab-btn-area .tab-btn.notice {
  background: #a34e94;
}

.tab-btn-area .tab-btn.events {
  background: #42ac8b;
}