class='id identifier rubyid_xml'>xml</span><span class='period'>.</span><span class='id identifier rubyid_declare!'>declare!</span> <span class='symbol'>:DOCTYPE</span><span class='comma'>,</span> <span class='symbol'>:html</span><span class='comma'>,</span> <span class='symbol'>:PUBLIC</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>-//W3C//DTD XHTML 1.0 Strict//EN</span><span class='tstring_end'>&#39;</span></span><span class='co