Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “CACHE-CONTROL” for attribute “http-equiv” on element “meta”.
Bad start tag in “iframe” in “head”.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “40px;” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “rong500”.
No space between attributes.
The “font” element is obsolete. Use CSS instead.
Bad value “” for attribute “cols” on element “textarea”: The empty string is not a valid positive integer.
Bad value “” for attribute “rows” on element “textarea”: The empty string is not a valid positive integer.
Attribute “mytype” not allowed on element “input” at this point.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “charset” attribute on the “script” element is obsolete.
The first occurrence of ID “rong500” was here.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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