Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “description” for attribute “http-equiv” on element “meta”.
Bad value “keywords” for attribute “http-equiv” on element “meta”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://fonts.googleapis.com/css?family=Roboto+Slab:100,300,400,700|Roboto:100,100i,300,300i,400,400i,500,500i,700,700i,900,900i” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Malformed byte sequence: “f1”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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