Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “pragma” for attribute “http-equiv” on element “meta”.
Bad value “content-style-type” for attribute “http-equiv” on element “meta”.
Bad value “content-script-type” for attribute “http-equiv” on element “meta”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
The element “header” must not appear as a descendant of the “header” element.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “” for attribute “name” on element “input”: Must not be empty.
Bad value “” for attribute “id” on element “input”: An ID must not be the empty string.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “”.
Duplicate ID “btnMas”.
Duplicate ID “btnMenos”.
The element “footer” must not appear as a descendant of the “header” element.
Duplicate ID “itemsMenu”.
Duplicate ID “MenusDestacados”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “onclientclick” not allowed on element “a” at this point.
Attribute “$('.heronav-a-item').removeclass("heronav-a-selected");” not allowed on element “a” at this point.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_0').parents('li').addclass("heronav-a-selected");return” not allowed on element “a” at this point.
Attribute “false;})” not allowed on element “a” at this point.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_1').parents('li').addclass("heronav-a-selected");return” not allowed on element “a” at this point.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_2').parents('li').addclass("heronav-a-selected");return” not allowed on element “a” at this point.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_3').parents('li').addclass("heronav-a-selected");return” not allowed on element “a” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
Unclosed element “nav”.
Stray end tag “ul”.
Stray end tag “nav”.
Unclosed element “main”.
Bad value “/Educo/media/Imagenes/Que puedes hacer tú/BCBox.png?ext=.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “” for attribute “src” on element “embed”: Must be non-empty.
Bad value “100%” for attribute “width” on element “embed”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “height” on element “embed”: Expected a digit but saw “%” instead.
Stray end tag “main”.
The element “header” must not appear as a descendant of the “footer” element.
The element “footer” must not appear as a descendant of the “footer” element.
Stray end tag “div”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Empty heading.
The first occurrence of ID “” was here.
The first occurrence of ID “btnMas” was here.
The first occurrence of ID “btnMenos” was here.
The first occurrence of ID “itemsMenu” was here.
The first occurrence of ID “MenusDestacados” was here.
Attribute “$('.heronav-a-item').removeclass("heronav-a-selected");” is not serializable as XML 1.0.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_0').parents('li').addclass("heronav-a-selected");return” is not serializable as XML 1.0.
Attribute “false;})” is not serializable as XML 1.0.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_1').parents('li').addclass("heronav-a-selected");return” is not serializable as XML 1.0.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_2').parents('li').addclass("heronav-a-selected");return” is not serializable as XML 1.0.
Attribute “$('#p_lt_cmswebpartzone3_pageplaceholder_p_lt_ctl00_contentsliderinicio_page_3').parents('li').addclass("heronav-a-selected");return” is not serializable as XML 1.0.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.