Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Attribute “hide” not allowed on element “img” at this point.
Element “div” not allowed as child of element “ol” in this context. (Suppressing further errors from this subtree.)
CSS: “text-emphasis”: “center” is not a “color” value.
Duplicate ID “amobile_menu_button”.
Attribute “spfieldtype” not allowed on element “a” at this point.
Attribute “spsourceindex” not allowed on element “a” at this point.
Duplicate ID “mobile_menu_button”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “number_topics_home”.
Duplicate ID “number_posts_home”.
Duplicate ID “gotolastpost”.
The “font” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Too many messages.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “amobile_menu_button” was here.
The first occurrence of ID “mobile_menu_button” was here.
The first occurrence of ID “number_topics_home” was here.
The first occurrence of ID “number_posts_home” was here.
The first occurrence of ID “gotolastpost” was here.
Iran IR