Pneumatiky.cz W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Bad value “shorturl” for attribute “rel” on element “link”: The string “shorturl” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Duplicate ID “PneuNewIdentifier_0”.
No “li” element in scope but a “li” end tag seen.
Bad value “auto” for attribute “width” on element “img”: Expected a digit but saw “a” instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “PneuNewIdentifier_0” was here.
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