Atlanticbt.com W3C HTML Markup Validation
HTML markup errors and warnings
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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.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “banner” for attribute “role” on element “h1”.
Text not allowed in element “iframe” in this context.
Duplicate ID “Layer_1”.
Duplicate ID “SVGID_1_”.
Duplicate ID “SVGID_2_”.
Duplicate ID “logo-text”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “Layer_1” was here.
The first occurrence of ID “SVGID_1_” was here.
The first occurrence of ID “SVGID_2_” was here.
The first occurrence of ID “logo-text” was here.
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