All stylistic concerns were removed from XHTML, and left to CSS (Cascading Style Sheets), which I will discuss in detail shortly.
XHTML去掉了和样式有关的全部内容，而留给CSS(级联样式表)完成，稍后我们将讨论CSS。
This version of the browser, introduced in 1997, was the first browser to implement CSS (Cascading Style Sheets).
这是1997年推出的浏览器版本，是第一款支持CSS的浏览器。
Resources: images, CSS (Cascading Style Sheets), audio, video, and HTML documents
资源：图片、级联样式表、音频和视频文件、HTML文档；
With CSS (Cascading Style Sheets) you can add display information to an XML document.
利用CSS(层叠样式表)，你可以给XML文件添加显示信息。
With CSS (Cascading Style Sheets) you can add display information to an XML document.
利用CSS(层叠样式表)，你可以给XML文件添加显示信息。
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