Financnykompas.sk W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “”0”” for attribute “height” on element “iframe”: Expected a digit but saw “”” instead.
Bad value “”0”” for attribute “width” on element “iframe”: Expected a digit but saw “”” instead.
Bad value “modal:close” for attribute “rel” on element “a”: The string “modal:close” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate attribute “type”.
Attribute “placeholder” not allowed on element “input” at this point.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
Warnings:
The “form” role is unnecessary for element “form”.
The “button” role is unnecessary for element “button”.
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