Karelia.fi W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
Consider avoiding viewport values that prevent users from resizing documents.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
CSS: “background-color”: “#rgb” is not a “background-color” value.
CSS: Parse Error.
The only allowed value for the “type” attribute for the “style” element is “text/css” (with no parameters). (But the attribute is not needed and should be omitted altogether.)
CSS: “width”: “device-width” is not a “width” value.
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.
Bad value “” for attribute “size” on element “input”: The empty string is not a valid positive integer.
Attribute “pubdate” not allowed on element “time” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
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