The elements can also be treated differently based on their context-the parent elements in which they are nested or elements hierarchically above them in the document tree (ancestors).
还可以根据上下文—嵌套它们的父元素或文档树中在它们层次之上的元素(祖先)，使用不同方式处理元素。
The elements can also be treated differently based on their context-the parent elements in which they are nested or elements hierarchically above them in the document tree (ancestors).
还可以根据上下文—嵌套它们的父元素或文档树中在它们层次之上的元素(祖先)，使用不同方式处理元素。
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