Aaai.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
Bad value “Window-target” for attribute “http-equiv” on element “meta”.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “box1”.
Bad value “185.2” for attribute “width” on element “img”: Expected a digit but saw “.” instead.
Bad value “237.5” for attribute “height” on element “img”: Expected a digit but saw “.” instead.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “box1” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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