HTML and CSS Reference
In-Depth Information
heora video and Vorbis audio in Ogg container
<source src='video.ogv' type='video/ogg; codecs="theora, vorbis"'/>
heora video and Speex audio in Ogg container
<source src='video.ogv' type='video/ogg; codecs="theora, speex"'/>
Vorbis audio alone in Ogg container
<source src='audio.ogg' type='audio/ogg; codecs=vorbis'/>
Speex audio alone in Ogg container
<source src='audio.spx' type='audio/ogg; codecs=speex'/>
FLAC audio alone in Ogg container
<source src='audio.oga' type='audio/ogg; codecs=flac'/>
Dirac video and Vorbis audio in Ogg container
<source src='video.ogv' type='video/ogg; codecs="dirac, vorbis"'/>
heora video and Vorbis audio in Matroska container
<source src='video.mkv' type='video/x-matroska; codecs="theora,
vorbis"'/>
Isn't it great that the Web not only gives us information but can take it from
us as well? Since its early days, HTML has been able to accept user input using
forms with well-deined input ield types and controls. his forward-looking
addition to HTML had the efect of establishing websites as more than hyper-
linked collections of documents—a website can be an application!
In HTML5, a form is a
block
element that serves as a container for collec-
tions of
input
elements and controls. A form can contain any other markup
and content, with the exception of another
form
element. Although multiple
forms can exist on the same web page, the most common approach is to have a
single form on a page that submits the user's input to a server-side CGI pro-
gram. he CGI program then returns a page that acknowledges the submission
