I need to apply style only to the elements that has the class "red". How do I avoid applying the class to all children town the stream?

```css
.red {
  color: red
}
```

```html
<ul>
  <li>item</li>
  <li class="red">item
    <ul>
      <li>item</li>
      <li class="red">item</li>
      <li>item</li>
    </ul>
  </li>
</ul>
```