Errors:
Bad value “cache-control” for attribute “http-equiv” on element “meta”.
Bad value “expires” for attribute “http-equiv” on element “meta”.
Bad value “pragma” for attribute “http-equiv” on element “meta”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
Attribute “href” not allowed on element “button” at this point.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Duplicate ID “login”.
Duplicate ID “cancel”.
Duplicate ID “usertype”.
Duplicate ID “loginname”.
Duplicate ID “passwords”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
End tag “u” violates nesting rules.
Stray end tag “span”.
Stray end tag “u”.
Stray end tag “a”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Stray end tag “body”.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “login” was here.
The first occurrence of ID “cancel” was here.
The first occurrence of ID “usertype” was here.
The first occurrence of ID “loginname” was here.
The first occurrence of ID “passwords” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in Thai but the “html” start tag has “lang="en"”. Consider using “lang="th"” (or variant) instead.
Thailand TH