Writing XHTML demands a clean HTML syntax.
写XHTML要求使用干净的HTML语法
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Some More XHTML Syntax Rules:
更多XHTML语法规则：
Attribute names must be in lower case
属性名称必须为小写
Attribute values must be quoted
属性值使用双引号
Attribute minimization is forbidden
属性简写是不允许的
The id attribute replaces the name attribute
用id属性来替代name属性
The XHTML DTD defines mandatory elements
XHTML DTD定义强制元素
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