body, head, html, title
文本abbr, acronym, address, blockquote, br, cite, code, dfn, div, em,
h1, h2, h3, h4, h5, h6, kbd, p, pre, q, samp, span, strong, var
链接a
列表dl, dt, dd, ol, ul, li
表单form, input, label, select, option, textarea
表格caption, table, td, th, tr
图片img
对象object, param
meta
外部调用link
基本base