Errors:
Bad value “CACHE-CONTROL” for attribute “http-equiv” on element “meta”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Attribute “ type” not allowed on element “script” at this point.
The “font” element is obsolete. Use CSS instead.
Attribute “back-title” not allowed on element “a” at this point.
Attribute “bordercolor” not allowed on element “table” at this point.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “align” attribute on the “h4” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “td” in this context. (Suppressing further errors from this subtree.)
Table column 4 established by element “td” has no cells beginning in it.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
Duplicate ID “tabnav”.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
A slash was not immediately followed by “>”.
Attribute “href-"” not allowed on element “a” at this point.
Attribute “heat” not allowed on element “a” at this point.
Attribute “heating-boiler-diagnosis.php"” not allowed on element “a” at this point.
Duplicate ID “cse-search-box”.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “ShareLinks”.
Element “script” must not have attribute “async” unless attribute “src” is also specified or unless attribute “type” is specified with value “module”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
“<” in attribute name. Probable cause: “>” missing immediately before.
Element “lidavid” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “em”.
No “li” element in scope but a “li” end tag seen.
End tag “ul” seen, but there were open elements.
Unclosed element “lidavid”.
Bad value “2” for attribute “border” on element “img”: Only “0” is a permitted zero literal.
The “hspace” attribute on the “img” element is obsolete. Use CSS instead.
Stray end tag “a”.
Start tag “br” seen in “table”.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute “ type” is not serializable as XML 1.0.
A table row was 4 columns wide and exceeded the column count established by the first row (3).
The first occurrence of ID “tabnav” was here.
Attribute “href-"” is not serializable as XML 1.0.
Attribute “heating-boiler-diagnosis.php"” is not serializable as XML 1.0.
The first occurrence of ID “cse-search-box” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “ShareLinks” was here.
Attribute “carr,” is not serializable as XML 1.0.
Attribute “"journalism,” is not serializable as XML 1.0.
Attribute “it's” is not serializable as XML 1.0.
Attribute “tilted",” is not serializable as XML 1.0.
Attribute “<em” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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