Airdo.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “id” on element “body”: An ID must not be the empty string.
Duplicate ID “SS_searchSubmit”.
Bad value “” for attribute “name” on element “input”: Must not be empty.
Duplicate ID “column-side”.
Element “div” not allowed as child of element “span” 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.
Warnings:
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “SS_searchSubmit” was here.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “column-side” was here.
The “contentinfo” role is unnecessary for element “footer”.
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