Tigergraph.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Errors:
Bad value “” for attribute “href” on element “link”: Must be non-empty.
Bad value “//fonts.googleapis.com/css?family=Raleway:100,200,300,400,500,600,700,800,900,300italic,400italic|Montserrat:100,200,300,400,500,600,700,800,900,300italic,400italic&subset=latin,latin-ext” 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.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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