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Tabella comparata dei tag XHTML

Con XHTML il W3C ha riformulato HTML come applicazione di XML, infatti, la prima recommendation del W3C, XHTML 1.0 , è una semplice riformulazione di HTML 4 in termini di XML, senza nessuna introduzione di nuove forme. La semantica degli elementi e degli attributi non è assolutamente cambiata da HTML 4.

I DTD XHTML 1, riproducono, limitano ed estendono HTML e sono realizzati per operare con user agent basati su XML, mentre, XHTML 2.0 , ancora in fase di miglioramento, definisce diversi nuovi elementi, ed un certo numero di nuovi attributi.

Tabella comparata dei tag XHTML:

Tag Tipo Marcatura Strict Strict Trans Fram
<!--...--> Commento y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<!DOCTYPE> Tipo di documento y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<a> Ancora y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<abbr> Abbreviazione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<acronym> Acronimo y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<address> Indirizzo y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<applet> Applet n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<area /> Area mappa immagine y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<b> Grassetto (bold) y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<base /> Base-url y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<basefont /> Base-font n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<bdo> Bi-directional override y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<big> Testo più grande y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<blockquote> Citazione lunga y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<body> Corpo documento y: standard w3c y: standard w3c y: standard w3c n: standard w3c
<br /> A capo y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<button> Bottone y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<caption> Titolo tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<center> Testo centrato n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<cite> Citazione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<code> Codice y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<col> Attributi colonne tabelle y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<colgroup> Gruppo colonne tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<dd> Lista definizione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<del> Testo cancellato y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<dir> Lista directory y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<div> Porzione documento n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<dfn> Termine definizione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<dl> Lista definizione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<dt> Lista definizione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<em> Testo enfatizzato y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<fieldset> Imsieme campi y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<font> Tipo di font n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<form> Form y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<frame> Singolo frame n: standard w3c n: standard w3c n: standard w3c y: standard w3c
<frameset> Set di frame n: standard w3c n: standard w3c n: standard w3c y: standard w3c
<h1>...<h6> Titoti gerarchici y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<head> Delimita informazioni testa documento y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<hr /> Linea orizzontale y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<html> Delimita documento HTML y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<i> Testo corsivo (italic) y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<iframe> Frame inline n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<img /> Immagine y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<input /> Campo input y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<ins> Testo inserito y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<kbd> Testo tastiera y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<label> Etichetta oggetto form y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<legend> Titolo di un fieldset y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<li> Elemento lista y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<link> Relazione tra documenti y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<map> Mappa immagine y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<menu> Delimita menù di lista n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<meta> Marca le meta infomazioni relative alla pagina y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<noframes> Per browser no frame n: standard w3c n: standard w3c n: standard w3c y: standard w3c
<noscript> Per browser no scipt y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<object> Oggetto nel documento y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<ol> Lista ordinata y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<optgroup> Gruppo logico opzioni in select y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<option> Opzione in select y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<p> Paragrafo y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<param> Parametri tag object y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<pre> Testo preformattato y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<q> Breve citazione y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<s> Testo barrato n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<samp> Codice esempio y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<script> Script y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<select> Menù tendina y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<small> Testo più piccolo y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<span> Sezione documento y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<strike> Testo barrato n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<strong> Testo grassetto enfatizzato y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<style> Stile linea y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<sub> Testo pedice y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<sup> Testo apice y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<table> Tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<tbody> Corpo tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<td> Cella tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<textarea> Area testo form y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<tfoot> Piede tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<th> Intestazione cella tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<thead> Testata tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<title> Titolo documento y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<tr> Riga tabella y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<tt> Testo teletype y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<u> Testo sottolineato n: standard w3c n: standard w3c y: standard w3c y: standard w3c
<ul> Lista non ordinata y: standard w3c y: standard w3c y: standard w3c y: standard w3c
<var> Variabile y: standard w3c y: standard w3c y: standard w3c y: standard w3c


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