Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “searchForm” was here.
The first occurrence of ID “Ntt” was here.
The first occurrence of ID “heading1” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Attribute “fromid” not allowed on element “form” at this point.
Attribute “def” not allowed on element “input” at this point.
Bad value “/instruments/piano-sheet-music/900069?isPLP=1&Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/instruments/guitar-sheet-music/900041?isPLP=1&Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/instruments/voice-solo-sheet-music/900140+21200001?Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/genres/pop-sheet-music/700124+21200001?Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/genres/rock-sheet-music/700139+21200001?Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/genres/country-sheet-music/700060+21200001?Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/genres/broadway-sheet-music/700006+21200001?Ns=salesRank|1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/genres/children-s-musicals-sheet-music/700014?Ntt=christmas&narrow_by=christmas&Ns=salesRank|1&recsPerPage=25¤tPage=1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “/search/ensembles/choir/500021?Ntt=handel+messiah&Ns=salesRank|1&recsPerPage=25¤tPage=1” for attribute “href” on element “a”: Illegal character in query: “|” is not allowed.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
End tag “br”.
Stray end tag “a”.
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.
Duplicate ID “searchForm”.
Duplicate ID “Ntt”.
Duplicate ID “heading1”.
Bad value “” for attribute “name” on element “input”: Must not be empty.
End tag “li” implied, but there were open elements.
Unclosed element “a”.
Start tag “a” seen but an element of the same type was already open.
No “a” element in scope but a “a” end tag seen.
Element “h5” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “size” not allowed on element “textarea” at this point.
Attribute “def” not allowed on element “textarea” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “footer”.
Stray end tag “footer”.
Attribute “onlick” not allowed on element “a” at this point.
Stray end tag “div”.
Stray start tag “script”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
An element with “role=tab” must be contained in, or owned by, an element with “role=tablist”.
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