Safaribookings.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Duplicate attribute “value”.
Bad character “1” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
Element “source” is missing required attribute “srcset”.
Element “img” is missing required attribute “src”.
Element “noscript” not allowed as child of element “picture” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate attribute “src”.
Bad value “overlay nofollow” for attribute “rel” on element “a”: The string “overlay” is not a registered keyword.
Bad value “overlay” for attribute “rel” on element “a”: The string “overlay” is not a registered keyword.
Duplicate attribute “alt”.
Warnings:
The “date” input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.
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