Promoboxx.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://fonts.googleapis.com/css?family=Roboto:100,300,400,700,900|Roboto+Condensed:300,400,700|Lato:100,300,400,700,900” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “big” element is obsolete. Use CSS instead.
Attribute “--data-loading” not allowed on element “div” at this point.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Attribute “--data-loading” is not serializable as XML 1.0.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “dialog” element is not supported in all browsers. Please be sure to test, and consider using a polyfill.
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