Advan.co.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “nologin_user_memu” was here.
The “form” role is unnecessary for element “form”.
Attribute “ style” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Errors:
Text not allowed in element “ul” in this context.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “nologin_user_memu”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
Attribute “ style” not allowed on element “a” at this point.
Element “dl” is missing a required instance of child element “dd”.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
The “font” element is obsolete. Use CSS instead.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
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