Olympia.london W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
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.
Bad value “nope” for attribute “autocomplete” on element “form”.
Duplicate attribute “class”.
Bad value “nope” for attribute “autocomplete” on element “input”: The string “nope” is not a valid autofill field name.
Bad value “” for attribute “name” on element “input”: Must not be empty.
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 “spam”.
End tag “div” seen, but there were open elements.
Unclosed element “span”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
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