js切换tab样式

<div class="tab-container">
  <div class="tab-buttons">
    <button class="tab-button active" data-tab="tab1">Tab 1</button>
    <button class="tab-button" data-tab="tab2">Tab 2</button>
    <button class="tab-button" data-tab="tab3">Tab 3</button>
  </div>
  <div class="tab-content">
    <div id="tab1" class="tab-pane active">Content for Tab 1</div>
    <div id="tab2" class="tab-pane">Content for Tab 2</div>
    <div id="tab3" class="tab-pane">Content for Tab 3</div>
  </div>
</div>

.tab-container {
  width: 100%;
}
.tab-buttons {
  display: flex;
}
.tab-button {
  padding: 10px;
  cursor: pointer;
}
.tab-button.active {
  background-color: #ddd;
}
.tab-content {
  margin-top: 10px;
}
.tab-pane {
  display: none;
}
.tab-pane.active {
  display: block;
}

document.addEventListener('DOMContentLoaded', function() {
  const tabButtons = document.querySelectorAll('.tab-button');
  
  tabButtons.forEach(button => {
    button.addEventListener('click', function() {
      const targetTab = this.getAttribute('data-tab');
      
      // 移除所有按钮和内容的active类
      tabButtons.forEach(btn => btn.classList.remove('active'));
      document.querySelectorAll('.tab-pane').forEach(pane => pane.classList.remove('active'));
      
      // 添加当前按钮和内容的active类
      this.classList.add('active');
      document.getElementById(targetTab).classList.add('active');
    });
  });
});