Americanchemistry.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”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No “p” element in scope but a “p” end tag seen.
Bad value “mailto:?subject=Main Home Page&body=https%3a%2f%2fwww.americanchemistry.com%2fdefault.aspx” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Empty heading.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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