Architecturendesign.net W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
Bad value “https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,700italic,800italic,400,300,700,800|Raleway:400,200,100,500,700,800,900&subset=latin,latin-ext” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
The “center” element is obsolete. Use CSS instead.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Cannot recover after last error. Any further errors will be ignored.
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 “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
Consider avoiding viewport values that prevent users from resizing documents.
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