Bitflyer.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Consider avoiding viewport values that prevent users from resizing documents.
Potentially bad value “zh-cmn-hans” for attribute “hreflang” on element “link”: The language tag “zh-cmn-hans” is deprecated. Use “cmn-hans” instead.
The “type” attribute for the “style” element is not needed and should be omitted.
The first occurrence of ID “h2” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
CSS: “margin”: “none” is not a “margin” value.
Element “style” not allowed as child of element “form” 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.
Duplicate ID “h2”.
Bad value “tooltip” for attribute “role” on element “figcaption”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “https://bitflyer.jp/pub/Get Bitcoin_01_jp.pdf” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
The “aria-controls” attribute must point to an element in the same document.
Japan JP
