Ila.edu.vn 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 “snow” was here.
This document appears to be written in Vietnamese but the “html” start tag has “lang="en"”. Consider using “lang="vi"” (or variant) instead.
Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Bad value “https://www.facebook.com/tr?id=1834243690219681&ev=PageView
&noscript=1” for attribute “src” on element “img”: Tab, new line or carriage return found.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
The text content of element “script” was not in the required format: Content contains the character sequence “<!--” without a later occurrence of the character sequence “-->”.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “snow”.
Bad value “50px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Element “h6” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Viet Nam VN