#tab_area {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-grow: 1;
  height: 100%;
}

.tabs {
  position: relative;
}
.tabs .tab_items {
  padding: 0.7em 0;
  display: flex;
  align-items: center;
  overflow-x: auto;
}
.tabs .tab_items.item_num_1{
  padding: 0.7em 0;
  display: block;
  align-items: center;
  overflow-x: auto;
}
.tabs .tab_items div {
  word-break: break-word;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  border-bottom: transparent 5px solid;
  text-align: center;
}
.tabs .tab_items div.active {
  border-bottom-color: #3eb5e9;
}
.tabs .arrow {
  display: none;
  width: 1.5em;
  position: absolute;
  top: 0;
  height: 100%;
}
.tabs .arrow:after {
  content: "";
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  right: 0.5em;
  width: 0.6em;
  height: 0.6em;
  border: solid #6c6c6c;
  transform: rotate(45deg) translate(-50%, -50%);
}
.tabs .arrow_next {
  right: 0;
}
.tabs .arrow_next:after {
  left: 0;
  border-width: 1px 1px 0 0;
}
.tabs .arrow_prev {
  left: 0;
}
.tabs .arrow_prev:after {
  border-width: 0 0 1px 1px;
}
.tabs.scroll_next {
  padding-right: 2em;
}
.tabs.scroll_next .arrow_next {
  display: block;
}
.tabs.scroll_prev {
  padding-left: 2em;
}
.tabs.scroll_prev .arrow_prev {
  display: block;
}

.tab_container {
  position: relative;
  overflow-x: hidden;
  flex-grow: 1;
}

.tab_contents {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 100%;
  transition: 0.3s;
  user-select: none;
  padding: 1.5em;
  overflow-y: auto;
}
.tab_contents.active {
  transform: translateX(0);
}
.tab_contents.next_active {
  transform: translateX(100%);
}
.tab_contents.prev_active {
  transform: translateX(-100%);
}