come si risolve per validare il w3c?

[tasto]

#  Error  Line 45, Column 112: required attribute "alt" not specified.

…ogobn.png" width="100" height="121" /></div>      </div>


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>.

[tonicopi]

Ciao tasto, ma ci stai prendendo in giro? Io ci capisco poco di inglese ma qualcosa di html. Mi par di capire che manca l'attributo tag a quella immagine. Ti dice anche la riga dove sta!
E in effetti il w3c richiede che l'attributo alt delle immagini venga compilato 

[tasto]

no alt lo so risolvere, scusa, il problema è questo

# Error  Line 116, Column 38: document type does not allow element "style" here

<style type="text/css" media="screen">

✉

The element named above was found in a context where it is not allowed. This could mean that you have incorrectly nested elements -- such as a "style" element in the "body" section instead of inside "head" -- or two elements that overlap (which is not allowed).

One common cause for this error is the use of XHTML syntax in HTML documents. Due to HTML's rules of implicitly closed elements, this error can create cascading effects. For instance, using XHTML's "self-closing" tags for "meta" and "link" in the "head" section of a HTML document may cause the parser to infer the end of the "head" section and the beginning of the "body" section (where "link" and "meta" are not allowed; hence the reported error).

e rientra nel codice di UCD

Codice: [Seleziona]

# <!-- JoomlaWorks "Ultimate Content Display" Module (v1.1) starts here -->
# <style type="text/css" media="screen">
# @import "http://www.qwer.it/info/modules/mod_jw_ucd/mod_jw_ucd/jqueryfader/mod_jw_ucd.css";
# ul#ucd-instance.ucd_jqueryfader li {height:150px;background-color:#F7F4E5;}
# </style>

aggiungo anche questo

# Error  Line 166, Column 5: end tag for "div" omitted, but OMITTAG NO was specified

</li>

You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

[tasto]

come si fa?