content elements

• In addition , we have defined a subset of xhtml for which there is a very simple transformation into the dita format - often with no change to many content elements
  另外我们已经定义了一个xhtml的子集，可以很方便地转换成dita格式- -对于许多内容元素通常没有变化！
• You can handle such requirements by creating new specializations of existing content elements and providing a domain to reuse the new content elements within topic structures
  可以通过创建现有内容元素的新的专门化并提供一个域以在主题结构内重用该新内容元素来处理这类需求。