(X)HTML5 validation results for http://www.youtube.com/html5

Validator Input
  1. Error: Almost standards mode doctype. Expected <!DOCTYPE html>.

    From line 1, column 1; to line 1, column 122

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd"><html

  2. Error: The element button must not appear as a descendant of the a element.

    From line 80, column 4; to line 80, column 106

    o');"> <button id="logo" class="master-sprite" title="" onclick="window.top.location.href='/'; return false;"></butt

  3. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  4. Error: Duplicate ID .

    From line 103, column 4; to line 103, column 170

    ue</a> <a class="yt-button yt-button-urgent yt-button-short" id="" style="" href="/my_videos_upload" onclick="yt.analytics.urchinTracker('/Events/Header_4/UserNav/Upload');"><span>

  5. Warning: The first occurrence of ID was here.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

  6. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 103, column 4; to line 103, column 170

    ue</a> <a class="yt-button yt-button-urgent yt-button-short" id="" style="" href="/my_videos_upload" onclick="yt.analytics.urchinTracker('/Events/Header_4/UserNav/Upload');"><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  7. Error: Duplicate ID .

    From line 132, column 5; to line 132, column 151

    px;"> <a class="yt-button yt-button-urgent" id="" style="" href="/html5?&amp;opt_out_ackd=1hl=fr&amp;persist_hl=1&amp;gl=FR&amp;persist_gl=1" onclick=""><span>

  8. Warning: The first occurrence of ID was here.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

  9. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 132, column 5; to line 132, column 151

    px;"> <a class="yt-button yt-button-urgent" id="" style="" href="/html5?&amp;opt_out_ackd=1hl=fr&amp;persist_hl=1&amp;gl=FR&amp;persist_gl=1" onclick=""><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  10. Error: Duplicate ID .

    From line 133, column 5; to line 133, column 139

    ></a> <a class="yt-button" id="" style="" href="/html5?&amp;opt_out_ackd=1&amp;hl=en&amp;persist_hl=1&amp;gl=US&amp;persist_gl=1" onclick=""><span>

  11. Warning: The first occurrence of ID was here.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

  12. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 133, column 5; to line 133, column 139

    ></a> <a class="yt-button" id="" style="" href="/html5?&amp;opt_out_ackd=1&amp;hl=en&amp;persist_hl=1&amp;gl=US&amp;persist_gl=1" onclick=""><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  13. Error: Duplicate ID .

    From line 152, column 5; to line 152, column 151

    px;"> <a class="yt-button yt-button-urgent" id="" style="" href="/html5?&amp;opt_out_ackd=1hl=fr&amp;persist_hl=1&amp;gl=FR&amp;persist_gl=1" onclick=""><span>

  14. Warning: The first occurrence of ID was here.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

  15. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 152, column 5; to line 152, column 151

    px;"> <a class="yt-button yt-button-urgent" id="" style="" href="/html5?&amp;opt_out_ackd=1hl=fr&amp;persist_hl=1&amp;gl=FR&amp;persist_gl=1" onclick=""><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  16. Error: Duplicate ID .

    From line 153, column 5; to line 153, column 139

    ></a> <a class="yt-button" id="" style="" href="/html5?&amp;opt_out_ackd=1&amp;hl=en&amp;persist_hl=1&amp;gl=US&amp;persist_gl=1" onclick=""><span>

  17. Warning: The first occurrence of ID was here.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

  18. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 153, column 5; to line 153, column 139

    ></a> <a class="yt-button" id="" style="" href="/html5?&amp;opt_out_ackd=1&amp;hl=en&amp;persist_hl=1&amp;gl=US&amp;persist_gl=1" onclick=""><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  19. Error: Element p not allowed as child of element h3 in this context. (Suppressing further errors from this subtree.)

    From line 227, column 6; to line 227, column 26

    <h3> <p class="yt-static">Vous n

    Contexts in which element p may be used:
    Where flow content is expected.
  20. Error: Heading cannot be a child of another heading.

    From line 228, column 6; to line 228, column 27

    </p> <h3 class="yt-static"><a hre

  21. Error: Stray end tag h3.

    From line 229, column 4; to line 229, column 8

    ></h3> </h3></p>

  22. Error: No p element in scope but a p end tag seen.

    From line 229, column 9; to line 229, column 12

    > </h3></p> </d

  23. Error: & did not start a character reference. (& probably should have been escaped as &amp;.)

    At line 237, column 113

    p;utm_medium=et&utm_c

  24. Error: The element button must not appear as a descendant of the a element.

    From line 237, column 148; to line 237, column 189

    ome-link"><button class="master-sprite chrome-icon"></butt

  25. Error: Duplicate ID .

    From line 247, column 2; to line 247, column 178

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('footer-search-term').value != '') { document['footer-search-form'].submit(); }; return false;"><span>

  26. Warning: The first occurrence of ID was here.

    From line 87, column 2; to line 87, column 172

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('masthead-search-term').value != '') { document['searchForm'].submit(); }; return false;"><span>

  27. Error: Bad value for attribute id on element a: An ID must not be the empty string.

    From line 247, column 2; to line 247, column 178

    alue=""> <a class="yt-button yt-button-primary" id="" style="" href="#" onclick="if (_gel('footer-search-term').value != '') { document['footer-search-form'].submit(); }; return false;"><span>

    Syntax of id:
    An ID consists of at least one character but must not contain any whitespace.
  28. Error: The cellpadding attribute on the table element is obsolete. Use CSS instead.

    From line 253, column 3; to line 253, column 41

    links"> <table cellpadding="0" cellspacing="0"> <t

  29. Error: The cellspacing attribute on the table element is obsolete. Use CSS instead.

    From line 253, column 3; to line 253, column 41

    links"> <table cellpadding="0" cellspacing="0"> <t

  30. Error: & did not start a character reference. (& probably should have been escaped as &amp;.)

    At line 264, column 91

    y?page=start.cs&hl=fr

  31. Error: & did not start a character reference. (& probably should have been escaped as &amp;.)

    At line 286, column 89

    tact_type=abuse&hl=fr

  32. Warning: The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.

    From line 378, column 2; to line 378, column 22

    <a name="pageBottom"></a>

There were errors. (Tried in the text/html mode.)

Total execution time 682 milliseconds.


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