Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Attribute “alt” not allowed on element “input” at this point.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Element “form” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “category_area”.
Element “a” not allowed as child of element “ul” 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.
End tag “li” seen, but there were open elements.
Unclosed element “a”.
No “a” element in scope but a “a” end tag seen.
Duplicate ID “aboutframe”.
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
The “font” element is obsolete. Use CSS instead.
Bad value “95%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “500px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “150px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “category_area” was here.
The first occurrence of ID “aboutframe” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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