Aerotech.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Bad value “May 29, 2018” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “May 8, 2018” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “March 29, 2018” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “March 22, 2018” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “Place” for attribute “itemtype” on element “div”: The string “Place” is not an absolute URL.
Warnings:
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).
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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