Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “xmlns:v” not allowed here.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Attribute “w” not allowed on element “img” at this point.
Duplicate attribute “alt”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “https:// bestbeginnerguitartoday.com/” for attribute “href” on element “a”: Invalid host: Illegal character in domain: space is not allowed.
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.
Attribute with the local name “xmlns:v” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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