使用语义主题更改选项卡背景

<div class="tab-container">
  <div class="tab" data-theme="theme1">Tab 1</div>
  <div class="tab" data-theme="theme2">Tab 2</div>
  <div class="tab" data-theme="theme3">Tab 3</div>
</div>

.tab-container {
  display: flex;
}

.tab {
  padding: 10px;
  cursor: pointer;
}

[data-theme="theme1"] {
  background-color: #ff0000;
  color: #ffffff;
}

[data-theme="theme2"] {
  background-color: #00ff00;
  color: #000000;
}

[data-theme="theme3"] {
  background-color: #0000ff;
  color: #ffffff;
}