Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Bogus comment.
No space between attributes.
Bad start tag in “iframe” in “head”.
Element “head” is missing a required instance of child element “title”.
Stray end tag “noscript”.
Bad value “https://www.googletagmanager.com/ns.html?id= GTM-MM9ZDH” for attribute “src” on element “iframe”: Illegal character in query: space is not allowed.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Attribute “http-equiv” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Attribute “name” not allowed on element “meta” at this point.
Element “title” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Attribute “itemprop” not allowed on element “meta” at this point.
A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “modulepreload”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “btn” not allowed as child of element “p” in this context. (Suppressing further errors from this subtree.)
Saw “</>”. Probable causes: Unescaped “<” (escape as “<”) or mistyped end tag.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The document is not mappable to XML 1.0 due to a trailing hyphen in a comment.
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
Serbia RS