Yildiz.edu.tr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Internal encoding declaration named an unsupported chararacter encoding “utf8_general_ci”.
Bad value “text/html; charset=utf8_general_ci” for attribute “content” on element “meta”: “utf8_general_ci” is not a valid character encoding name.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “ol” in this context. (Suppressing further errors from this subtree.)
The element “button” must not appear as a descendant of the “a” element.
Stray end tag “script”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
This document appears to be written in Turkish. Consider adding “lang="tr"” (or variant) to the “html” start tag.
Turkey TR