Cerotec.net W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “about” was here.
The first occurrence of ID “portfolio” was here.
Errors:
Attribute “controls” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “about”.
Duplicate ID “portfolio”.
Bad value “29/11/2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “13/11/2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “23/10/2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “19/10/2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “18/10/2017” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “aria-describedby” attribute must point to an element in the same document.
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