Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
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.
Bad value “https://fonts.googleapis.com/css?family=Roboto+Slab:100,100i,300,400|Roboto:100,300,400” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “rel” not allowed on element “div” at this point.
Bad value “nofollow noindex” for attribute “rel” on element “a”: The string “noindex” is not a registered keyword.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “height” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “platforms”.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The first occurrence of ID “platforms” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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