Investorsking.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “//fonts.googleapis.com/css?family=PT+Serif:300,400,400italic,600,700|Oswald:300,400,400italic,600,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
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 “” for attribute “srcset” on element “img”: Must contain one or more image candidate strings.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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