anchor.diff:                name
                 onreset
                 onsubmit
  -	      target)
  -
  -(def-html-tag <:frame :core
  -              frameborder
  -              longdesc
  -              marginheight
  -              marginwidth
  -              noresize
  -              scrolling
  -              src)
  +              target)
  +
  +(def-empty-html-tag <:frame :core
  +                    frameborder
  +                    longdesc
  +                    marginheight
  +                    marginwidth
  +                    noresize
  +                    scrolling
  +                    src)
   
   (def-html-tag <:frameset :core
                 cols
  
positive.code: 
  (def-html-tag <:address :core :event :i18n)
  
  (def-html-tag <:area :core :event :i18n
                alt
                accesskey
                coords
                href
                nohref
                onblur
                onfocus
                shape
                tabindex)
  
  (def-html-tag <:b :core :event :i18n)
  
  (def-html-tag <:base href)
  
  (def-html-tag <:bdo :i18n
                id
  
negative.code:               scrolling
                src)
  
  (def-empty-html-tag <:img :core :event :i18n
                      alt
                      src
                      height
                      ismap
                      longdesc
                      usemap
                      width)
  
  (def-empty-html-tag <:input :core :event :i18n
                      accept
                      accesskey
                      alt
                      checked
                      disabled
                      maxlength
                      name
                      onblur
                      onchange
                      onfocus
                      onselect
                      readonly
                      size
                      src
                      tabindex
                      type
                      usemap
                      value
                      width
                      height)
  
  (def-html-tag <:ins :core :event :i18n
                cite
  