You might also need to define CSS rules for the elements just in case any browsers do render your document in HTML 4 style which defaults unknown elements to inline rendering.
您还可能需要定义元素的CSS规则，以免任何浏览器以HTML4形式显示文档，HTML 4形式以内联呈现方式显示未知元素。
If the domain attribute's value is a "same document reference", the value defaults to the base URI of the containing document.
如果domain属性的值是一个“samedocumentreference ”，那么该值默认为包含文档的基本uri。
Actually, even before that, there are a few defaults that I know the whole document should have (we can override them for individual contexts, as needed).
事实上，甚至在这之前，我就知道还有一些缺省值是整个文档应该具有的(我们可以根据需要，为各个上下文重设这些值)。
Actually, even before that, there are a few defaults that I know the whole document should have (we can override them for individual contexts, as needed).
事实上，甚至在这之前，我就知道还有一些缺省值是整个文档应该具有的(我们可以根据需要，为各个上下文重设这些值)。
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