Miniatur-wunderland.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Attribute “href” not allowed on element “div” at this point.
Element “source” is missing required attribute “srcset”.
Element “img” is missing required attribute “src”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “target” not allowed on element “div” at this point.
Warnings:
The “main” role is unnecessary for element “main”.
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