属于第二类的文档通常在阅读前用样式表进行转换，并且用同一样式表准备过的文档看起来都很类似。
Documents that belong to the second category usually are transformed using a style sheet before they are read. And documents that are prepared using the same style sheet will look alike.
开发CSS2样式表以匹配XML文档的方言，这一过程非常简单。
The procedure for developing a CSS2 style sheet to match an XML document dialect is straightforward.
不过，IE6在显示分层树中缺少CSS2样式表的XML文档方面确有优势，而且它允许折叠子树。
However, IE6 does have the advantage of displaying XML documents that lack a CSS2 style sheet in a hierarchical tree, and it allows folding subtrees.
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