Elespectador.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Duplicate attribute “class”.
Attribute “subbag” not allowed on element “iframe” at this point.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “source” is missing required attribute “srcset”.
Element “img” is missing required attribute “src”.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
Element “div” not allowed as child of element “span” 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.
Warnings:
The “banner” role is unnecessary for element “header”.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
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