Aikatsu.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Duplicate ID “header_obstacleinfo”.
Duplicate attribute “class”.
Duplicate ID “btn_gnavi”.
Duplicate ID “sp_gnavi”.
Duplicate ID “closemenu”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “height” not allowed on element “a” at this point.
Attribute “width” not allowed on element “a” at this point.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
The first occurrence of ID “header_obstacleinfo” was here.
The first occurrence of ID “btn_gnavi” was here.
The first occurrence of ID “sp_gnavi” was here.
The first occurrence of ID “closemenu” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “charset” attribute on the “script” element is obsolete.
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