Listing 16.1. Fragment pliku xhtml1-strict.dtd od wiersza 196 do wiersza 204
<!--=== Block level elements ===-->

<!ENTITY % heading "h1|h2|h3|h4|h5|h6">
<!ENTITY % lists "ul | ol | dl">
<!ENTITY % blocktext "pre | hr | blockquote | address">

<!ENTITY % block
  "p | %heading; | div | %lists; | %blocktext; | fieldset | table">