Tsugimanga.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “btn” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Attribute “datatime” not allowed on element “time” at this point.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
Bad value “_bank” for attribute “target” on element “a”: Reserved keyword “bank” used.
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The “charset” attribute on the “script” element is obsolete.
The “type” attribute is unnecessary for JavaScript resources.
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