针对一个特定的选项卡内容调整css

<div class="tab-container">
  <button class="tab" onclick="openTab(event, 'tab1')">选项卡1</button>
  <button class="tab" onclick="openTab(event, 'tab2')">选项卡2</button>
  <button class="tab" onclick="openTab(event, 'tab3')">选项卡3</button>

  <div id="tab1" class="tab-content">
    <h3>选项卡1内容</h3>
    <p>这是选项卡1的内容。</p>
  </div>
  <div id="tab2" class="tab-content">
    <h3>选项卡2内容</h3>
    <p>这是选项卡2的内容。</p>
  </div>
  <div id="tab3" class="tab-content">
    <h3>选项卡3内容</h3>
    <p>这是选项卡3的内容。</p>
  </div>
</div>

.tab-container {
  display: flex;
  flex-direction: column;
}

.tab {
  background-color: #f1f1f1;
  border: none;
  padding: 10px;
  cursor: pointer;
}

.tab:hover {
  background-color: #ddd;
}

.tab-content {
  display: none;
  padding: 10px;
}

.tab-content h3 {
  color: #333;
}

.tab-content p {
  color: #666;
}

.tab-content.show {
  display: block;
}

function openTab(event, tabName) {
  var i, tabContent, tab;

  tabContent = document.getElementsByClassName("tab-content");
  for (i = 0; i < tabContent.length; i++) {
    tabContent[i].style.display = "none";
  }

  tab = document.getElementsByClassName("tab");
  for (i = 0; i < tab.length; i++) {
    tab[i].className = tab[i].className.replace(" active", "");
  }

  document.getElementById(tabName).style.display = "block";
  event.currentTarget.className += " active";
}