<!ENTITY % XHTML-transitional-blink.ns "http://www.leeanne.com/XML/blink.dtd">
<!ENTITY % misc "ins | del | blink | script | noscript">
<!--=================== Blinking Text ============================-->
<!--
  blink is allowed in block and inline content, but it's
  inappropriate to include block content within a blink element
  occurring in inline content.
-->
<!ELEMENT blink (#PCDATA | p | h1 | h2 | h3 | h4 | h5 | h6 | div | ul | ol | dl | menu | dir | pre | hr | blockquote | address | center | noframes | isindex | fieldset | table | form | a | br | span | bdo | object | applet | img | map | iframe | tt | i | b | big | small | u | s | strike |font | basefont | em | strong | dfn | code | q | sub | sup | samp | kbd | var | cite | abbr | acronym | input | select | textarea | label | button | ins | del | script | noscript)* >
<!ATTLIST blink
  id          ID             #IMPLIED
  class       CDATA          #IMPLIED
  style       CDATA          #IMPLIED
  title       CDATA          #IMPLIED
  lang        NMTOKEN        #IMPLIED
  xml:lang    NMTOKEN        #IMPLIED
  dir         (ltr|rtl)      #IMPLIED
  onclick     CDATA          #IMPLIED
  ondblclick  CDATA          #IMPLIED
  onmousedown CDATA          #IMPLIED
  onmouseup   CDATA          #IMPLIED
  onmouseover CDATA          #IMPLIED
  onmousemove CDATA          #IMPLIED
  onmouseout  CDATA          #IMPLIED
  onkeypress  CDATA          #IMPLIED
  onkeydown   CDATA          #IMPLIED
  onkeyup     CDATA          #IMPLIED
>

<!ENTITY % XHTML-Blink " PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
                      "http://www.w3.org/TR/xhtml1/DTD/transitional.dtd" [
%XHTML-Blink;

Note: Fragment for illustration purposes only