Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Errors:
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.
Bad value “https://bs.serving-sys.com/BurstingPipe?
cn=ot&
onetagid=6366&
ns=1&
activityValues=$$Session=[Session]$$&
retargetingValues=$$$$&
dynamicRetargetingValues=$$$$&
acp=$$$$&” for attribute “src” on element “iframe”: Tab, new line or carriage return found.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
Bad value “https://www.certainteed.com/inspiration-gallery/?f[0]=field_product_hierarchy:316” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
End tag “div” seen, but there were open elements.
Unclosed element “nav”.
Stray end tag “nav”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “about” not allowed on element “article” at this point.
Attribute “content” not allowed on element “span” at this point.
Attribute “about” not allowed on element “div” at this point.
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “id” on element “section”: An ID must not be the empty string.
Bad value “https://d3fgmcoixbear.cloudfront.net/s3fs-public/siding hero_1.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Duplicate ID “”.
Bad value “https://d3fgmcoixbear.cloudfront.net/s3fs-public/mechanical and industrial insulation_0_0.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “https://d3fgmcoixbear.cloudfront.net/s3fs-public/continuing education.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Attribute “height” 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 “width” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
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