Kotora.jp W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray end tag “meta”.
Bad value “only screen and (max-device-width: 480px)” for attribute “media” on element “link”: Deprecated media feature “max-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.
Bad start tag in “img” in “head”.
Bad value “https://www.facebook.com/tr?ev=6020145387210&cd[value]=0.00&cd[
currency]=JPY&noscript=1” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
The element “input” must not appear as a descendant of the “a” element.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “div”.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
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).
A table row was 3 columns wide, which is less than the column count established by the first row (4).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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