Татьянажеребцова.рф 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>”.
Bad start tag in “div” in “head”.
Element “head” is missing a required instance of child element “title”.
Stray end tag “noscript”.
Duplicate ID “sex”.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “matrix”.
Text not allowed in element “ul” in this context.
Warnings:
The “date” input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.
The first occurrence of ID “sex” was here.
The first occurrence of ID “matrix” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
This document appears to be written in Russian. Consider adding “lang="ru"” (or variant) to the “html” start tag.
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