CSS 카테고리 탭을 여는 방법

<code class="html"><div class="tabs">
  <button id="tab1">选项卡 1</button>
  <button id="tab2">选项卡 2</button>

  <div id="content1">内容 1</div>
  <div id="content2">内容 2</div>
</div></code>

<code class="css">.tabs {
  display: flex;
  background-color: #f1f1f1;
  padding: 10px;
}

.tabs button {
  padding: 10px 20px;
  background-color: #ccc;
  border: none;
  cursor: pointer;
}

.tabs button.active {
  background-color: #f1f1f1;
}

.tabs div {
  display: none;
  padding: 20px;
}

.tabs div.active {
  display: block;
}</code>

<code class="javascript">const tabs = document.querySelector('.tabs');

tabs.addEventListener('click', (e) => {
  if (e.target.tagName === 'BUTTON') {
    const tabId = e.target.id;
    const contentId = tabId.replace('tab', 'content');

    const buttons = tabs.querySelectorAll('button');
    buttons.forEach(btn => btn.classList.remove('active'));

    e.target.classList.add('active');

    const contents = tabs.querySelectorAll('div');
    contents.forEach(content => content.classList.remove('active'));

    const content = tabs.querySelector(`#${contentId}`);
    content.classList.add('active');
  }
});</code>