 14: Web-  

        HTML.

     HTML?

HTML    .     HTML -.  ,   HTML   .    -   .

    Internet     HTML-  World Wide Web Consortium (W3C),   Tim Berners-Lee (!   ,   HTML).      .

  -       - Netscape   .  HTML- .0  3.2.   ,  90%  Netscape      .  , Netscape    ,      .

  Microsoft   Internet.     Netscape,    .     Microsoft' - Internet Explorer -   HTML-  ,  Netscape.  Microsoft      (  ),  Internet Explorer     .

   4  5, Microsoft      HTML-  W3C. Netscape           4.

  .  HTML-  4.01  XHTML.   Internet Explorer   90% .  Internet Explorer     ,      W3C HTML-.       ,   Mozilla, Opera  Netscape.

,    HTML,   W3C,   web-,     -    . ,  , ,      ,       HTML,   XHTML.

! ,    -?

    HTML    ,   "" HTML  ,    - XHTML.    Document Type Definition/  . DTD      :

 1:


			   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
	           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 
	           <html xmlns="http://www.w3.org/1999/xhtml" lang="en">
 
			   <head>
			   <title>Title</title>
			   </head>
 
			   <body>
			   <p>text text</p>
			   </body>
 
			   </html>
	
	
 Document Type Definition (  ),   ,      XHTML,         html    xmlns  lang.

xmlns,    "XML-Name-Space",     http://www.w3.org/1999/xhtml.  ,   . ,     ,    namespaces  W3C web-.

  lang  ,     .     ISO 639,       .     English ("en").

  DTD   ,        HTML.         HTML-.

DTD        .

?       ?

 DTD    -   HTML            W3C's free validator.

   ,       Internet.    validator.w3.org,   (URL)     .   HTML ,   congratulations message.    -       ,     .      ,  .

 validator      .           ,     (  "").           .     -      . -validator   ,    ,  ,   .

       .