Lut.fi W3C HTML Markup Validation
HTML markup errors and warnings
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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”.
Bad value “sr-RS-latin” for attribute “hreflang” on element “link”: Bad variant subtag “latin”.
Attribute “border” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “” for attribute “target” on element “area”: Browsing context name must be at least one character long.
Stray start tag “script”.
Warnings:
Potentially bad value “iw-IL” for attribute “hreflang” on element “link”: The language subtag “iw” is deprecated. Use “he” instead.
Potentially bad value “in-ID” for attribute “hreflang” on element “link”: The language subtag “in” is deprecated. Use “id” instead.
The “banner” role is unnecessary for element “header”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “contentinfo” role is unnecessary for element “footer”.
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