come faccio a risolvere questi errori che non capisco?



Error Line 5 column 72: end tag for "meta" omitted, but OMITTAG NO was specified.
...ype" content="text/html; charset=iso-8859-1">You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

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Info Line 5 column 0: start tag was here.
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">Error Line 6 column 11: there is no attribute "NAME".
<META NAME="TITLE" CONTENT="casartigiani">You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).

This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.

How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the <embed> element to incorporate flash media in a Web page, see the FAQ item on valid flash.

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Error Line 6 column 27: there is no attribute "CONTENT".
<META NAME="TITLE" CONTENT="casartigiani">✉

Error Line 6 column 41: element "META" undefined.
<META NAME="TITLE" CONTENT="casartigiani">You have used the element named above in your document, but the document type you are using does not define an element of that name. This error is often caused by:

incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Frameset" document type to get the "<frameset>" element),
by using vendor proprietary extensions such as "<spacer>" or "<marquee>" (this is usually fixed by using CSS to achieve the desired effect instead).
by using upper-case tags in XHTML (in XHTML attributes and elements must be all lower-case.

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Error Line 7 column 241: element "META" undefined.
...te e sicurezza nei luoghi di lavoro ">✉

Error Line 8 column 228: element "META" undefined.
...ute e sicurezza nei luoghi di lavoro">✉

Error Line 9 column 42: element "META" undefined.
<META NAME="REVISIT-AFTER" CONTENT="1 DAY">✉

Error Line 10 column 34: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="robots" content="all">✉

Info Line 10 column 0: start tag was here.
<meta name="robots" content="all">Error Line 11 column 36: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="robots" content="index">✉

Info Line 11 column 0: start tag was here.
<meta name="robots" content="index">Error Line 12 column 37: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="robots" content="follow">✉

Info Line 12 column 0: start tag was here.
<meta name="robots" content="follow">Error Line 13 column 53: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="FAST-WebCrawler" content="index, follow"> ✉

Info Line 13 column 0: start tag was here.
<meta name="FAST-WebCrawler" content="index, follow"> Error Line 14 column 45: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="Scooter" content="index, follow"> ✉

Info Line 14 column 0: start tag was here.
<meta name="Scooter" content="index, follow"> Error Line 15 column 43: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="Slurp" content="index, follow"> ✉

Info Line 15 column 0: start tag was here.
<meta name="Slurp" content="index, follow"> Error Line 16 column 45: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta http-equiv="pragma" content="no-cache">✉

Info Line 16 column 0: start tag was here.
<meta http-equiv="pragma" content="no-cache">Error Line 17 column 39: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta http-equiv="expires" content="0">✉

Info Line 17 column 0: start tag was here.
<meta http-equiv="expires" content="0">Error Line 18 column 11: there is no attribute "NAME".
<meta NAME="distribution" CONTENT="casartigiani"> ✉

Error Line 18 column 34: there is no attribute "CONTENT".
<meta NAME="distribution" CONTENT="casartigiani"> ✉

Error Line 18 column 48: required attribute "content" not specified.
<meta NAME="distribution" CONTENT="casartigiani"> The attribute given above is required for an element that you've used, but you have omitted it. For instance, in most HTML and XHTML document types the "type" attribute is required on the "script" element and the "alt" attribute is required for the "img" element.

Typical values for type are type="text/css" for <style> and type="text/javascript" for <script>.

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Error Line 18 column 49: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta NAME="distribution" CONTENT="casartigiani"> ✉

Info Line 18 column 0: start tag was here.
<meta NAME="distribution" CONTENT="casartigiani"> Error Line 19 column 43: end tag for "meta" omitted, but OMITTAG NO was specified.
<meta name="author" content="casartigiani"> ✉

Info Line 19 column 0: start tag was here.
<meta name="author" content="casartigiani"> Error Line 20 column 62: end tag for "meta" omitted, but OMITTAG NO was specified.
...ame="copyright" content="Copyright 2007 -casartigiani"> ✉

Info Line 20 column 0: start tag was here.
<meta name="copyright" content="Copyright 2007 -casartigiani"> Error Line 21 column 59: element "META" undefined.
<META NAME="GENERATOR" CONTENT="Macromedia Dreamweaver 1.0">✉

Error Line 28 column 6: end tag for "META" omitted, but OMITTAG NO was specified.
</head>✉

Info Line 21 column 0: start tag was here.
<META NAME="GENERATOR" CONTENT="Macromedia Dreamweaver 1.0">Error Line 28 column 6: end tag for "META" omitted, but OMITTAG NO was specified.
</head>✉

Info Line 9 column 0: start tag was here.
<META NAME="REVISIT-AFTER" CONTENT="1 DAY">Error Line 28 column 6: end tag for "META" omitted, but OMITTAG NO was specified.
</head>✉

Info Line 8 column 0: start tag was here.
<META NAME="DESCRIPTION" CONTENT="casartigiani,patronato, C.A.F. ,serivizi alle Error Line 28 column 6: end tag for "META" omitted, but OMITTAG NO was specified.
</head>✉

Info Line 7 column 0: start tag was here.
<META NAME="SUBJECT" CONTENT="casartigiani,patronato, Anna Sacristano C-A-F- ,seError Line 28 column 6: end tag for "META" omitted, but OMITTAG NO was specified.
</head>✉

Info Line 6 column 0: start tag was here.
<META NAME="TITLE" CONTENT="casartigiani">Error Line 30 column 14: there is no attribute "bgcolor".
<body bgcolor="#9FFF9F">✉

Error Line 32 column 53: end tag for element "a" which is not open.
...ks"> C.A.F. </a>|<a href="SERVIZI%20ALLE%20IMPRESE.htm.The Validator found an end tag for the above element, but that element is not currently open. This is often caused by a leftover end tag from an element that was removed during editing, or by an implicitly closed element (if you have an error related to an element being used where it is not allowed, this is almost certainly the case). In the latter case this error will disappear as soon as you fix the original problem.

If this error occured in a script section of your document, you should probably read this FAQ entry.

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Error Line 42 column 14: there is no attribute "align".
<h1 align="center">-Casartigiani-</h1>✉

Error Line 46 column 15: there is no attribute "align".
<div align="center">[img]immagini/loghini/Casartigiani_655.gif[/img][img]immagini/loghini/Logo_animato.gif[/img]The mentioned element is not allowed to appear in the context in which you've placed it; the other mentioned elements are the only ones that are both allowed there and can contain the element mentioned. This might mean that you need a containing element, or possibly that you've forgotten to close a previous element.

One possible cause for this message is that you have attempted to put a block-level element (such as "

" or "<table>") inside an inline element (such as "<a>", "<span>", or "<font>").

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Error Line 85 column 14: end tag for "li" omitted, but OMITTAG NO was specified.[/list]✉

Info Line 75 column 12: start tag was here.
<div align="center">[img]immagini/loghini/Logo_animato.gif[/img]✉

Error Line 178 column 83: end tag for element "p" which is not open.
...a.org">l eafra@acaitoscana.org</a></p> ✉

Error Line 181 column 80: required attribute "alt" not specified.
...dente.jpg" width="500" height="500" /> ✉

Error Line 183 column 11: end tag for element "p" which is not open.
</p>✉

Error Line 195 column 44: there is no attribute "language".
...ript type="text/javascript" language="JavaScript" SRC="http://codice.shinysta✉

Error Line 195 column 61: there is no attribute "SRC".
...avascript" language="JavaScript" SRC="http://codice.shinystat.com/cgi-bin/get✉

Error Line 197 column 8: there is no attribute "HREF".
<A HREF="http://www.shinystat.com" target="_top">✉

Error Line 197 column 42: there is no attribute "target".
<A HREF="http://www.shinystat.com" target="_top">✉

Error Line 197 column 48: element "A" undefined.
<A HREF="http://www.shinystat.com" target="_top">✉

Error Line 198 column 9: there is no attribute "SRC".
</A>✉

Error Line 198 column 98: there is no attribute "BORDER".
...=magda64" ALT="Blog counters" BORDER="0"></A>✉

Error Line 198 column 101: element "IMG" undefined.
...gda64" ALT="Blog counters" BORDER="0"></A>✉

Error Line 198 column 105: end tag for "IMG" omitted, but OMITTAG NO was specified.
...4" ALT="Blog counters" BORDER="0"></A>✉

Info Line 198 column 0: start tag was here.
Most likely, You nested tags and closed them in the wrong order. For example

[i]...</p> is not acceptable, as [i] must be closed before

. Acceptable nesting is:

...</p>

Another possibility is that you used an element which requires a child element that you did not include. Hence the parent element is "not finished", not complete. For instance, <head> generally requires a <title>, lists (ul, ol, dl) require list items (li, or dt, dd), and so on.