Lovekrakow.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “fb-root” was here.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “header-top-nav” was here.
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).
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Duplicate ID “fb-root”.
The “center” element is obsolete. Use CSS instead.
Duplicate ID “header-top-nav”.
Attribute “gesture” not allowed on element “iframe” at this point.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
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