Robertwalters.co.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad start tag in “img” in “head”.
Attribute “1” not allowed on element “img” at this point.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Attribute “display:none” not allowed on element “img” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Attribute “https:” not allowed on element “img” at this point.
Attribute “www.facebook.com” not allowed on element “img” at this point.
Attribute “tr?id” not allowed on element “img” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute “1” is not serializable as XML 1.0.
Attribute “display:none” is not serializable as XML 1.0.
Attribute “https:” is not serializable as XML 1.0.
Attribute “tr?id” is not serializable as XML 1.0.
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