anchor.diff:                scrolling
                 src)
   
  -(def-html-tag <:img :core :event :i18n
  -              alt
  -              src
  -              height
  -              ismap
  -              longdesc
  -              usemap
  -              width)
  -
  -(def-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-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
  
positive.code: 
  (def-html-tag <:p :core :event :i18n)
  
  (def-html-tag <:param
                name
                id
                type
                value
                valuetype)
  
  (def-html-tag <:pre :core :event :i18n)
  
  
negative.code:               onload
                onunload)
  
  (def-empty-html-tag <:br :core)
  
  (def-html-tag <:button :core :event :i18n
                accesskey
  