Errors:
The character encoding was not declared. Proceeding using “windows-1252”.
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Start tag “head” seen but an element of the same type was already open.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
The “hspace” attribute on the “img” element is obsolete. Use CSS instead.
The “vspace” attribute on the “img” element is obsolete. Use CSS instead.
The “font” element is obsolete. Use CSS instead.
The “align” attribute on the “input” element is obsolete. Use CSS instead.
Bad value “” for attribute “size” on element “input”: The empty string is not a valid positive integer.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
Duplicate ID “contents-table”.
Duplicate ID “abstract”.
Table column 6 established by element “td” has no cells beginning in it.
Element “center” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
Duplicate attribute “border”.
End tag “div” seen, but there were open elements.
Unclosed element “center”.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Bad value “ceiling-
mount-bathroom-
exhaust.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “basement-
ventilation.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “inline-
bathroom-exhaust.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “outdoor-
wall-mounted-fans.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “radon-
fans.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “wall-mount-
fans.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Element “dl” is missing a required instance of child element “dd”.
Bad value “attic-
products.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “evaporative-coolers
.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
No “dt” element in scope but a “dt” end tag seen.
Bad value “garage-
products.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Stray end tag “a”.
No “dd” element in scope but a “dd” end tag seen.
Bad value “j-d-
manufacturing-
fans.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “quiet-cool-
fans.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “suncourt-
ventilation.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “ventilation-fans-soler-
palau.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
Bad value “tjernlund-ventilation-
fans.html” for attribute “href” on element “a”: Tab, new line or carriage return found.
End tag “dd” seen, but there were open elements.
Unclosed element “dl”.
Stray end tag “dl”.
Attribute “value” not allowed on element “input” at this point.
Stray start tag “script”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “contents-table” was here.
The first occurrence of ID “abstract” was here.
A table row was 6 columns wide and exceeded the column count established by the first row (5).
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
United States US