hola me llamo sandra G, saben como puedo corregir alguno de estos errores, esto me salio validando con Markup Validation Services
Line 29, column 14: document type does not allow element "HTML" here
<td>
<HTML>Line 35, column 73: document type does not allow element "LINK" here
…/es/estilos/headerStyle.css" type="text/css"/>
Line 289, column 121: end tag for "SPAN" omitted, but its declaration does not permit this
…ont face="Verdana"></font></span></td>Line 544, column 15: end tag for "TABLE" omitted, but its declaration does not permit this
</td>
Line 155, column 153: document type does not allow element "TABLE" here; missing one of "APPLET", "OBJECT", "MAP", "IFRAME", "BUTTON" start-tag
…"170" cellspacing="0" cellpadding="0"><TR><TD colSpan="2" class="bordeLateralLine 304, column 85: document type does not allow element "TABLE" here; missing one of "APPLET", "OBJECT", "MAP", "IFRAME", "BUTTON" start-tag
…FEXML2"><table border="0" width="170"><TR><TD colSpan="2"></TD></TR><TR><TD>
<Line 452, column 137: document type does not allow element "TABLE" here; missing one of "APPLET", "OBJECT", "MAP", "IFRAME", "BUTTON" start-tag
…n id="HtmlPlaceholderControl4"><TABLE>
Line 505, column 169: document type does not allow element "TABLE" here; missing one of "APPLET", "OBJECT", "MAP", "IFRAME", "BUTTON" start-tag
…llPadding="0" align="left" border="0">
L
ine 15, column 2269: NET-enabling start-tag requires SHORTTAG YES
…j47Pj47PgCXw6Vo9bmRmqkwFuZC9ItRyjR5" />
Line 35, column 73: NET-enabling start-tag requires SHORTTAG YES
…/es/estilos/headerStyle.css" type="text/css"/>
Line 85, column 244: NET-enabling start-tag requires SHORTTAG YES
… border="0" id="Image17" alt="inicio"/></a> <a href="/en/" onmouseout="MM_Line 85, column 502: NET-enabling start-tag requires SHORTTAG YES
…border="0" id="Image18" alt="english"/></a><a href="/es/mapasitioes.htm" onmoLine 85, column 771: NET-enabling start-tag requires SHORTTAG YES
…="0" id="Image19" alt="mapa de sitio"/></a><A href="/es/"></A>
Line 105, column 125: NET-enabling start-tag requires SHORTTAG YES
… height="12" alt="buscar en el sitio"/></td>
Line 564, column 51: NET-enabling start-tag requires SHORTTAG YES
<input type="hidden" name="__EVENTTARGET" value="" />
Line 565, column 53: NET-enabling start-tag requires SHORTTAG YES
<input type="hidden" name="__EVENTARGUMENT" value="" />