Transcript HTML 5
HTML5, OVERVIEW AND NEW FEATURES
PowerPoint by Mason O’Mara
Introduction
Quick HTML overview History Semantics and structural elements HTML5 multimedia, video and audio Flash vs. HTML5 Extended HTML5 forms HTML5 graphics and animations
Quick HTML overview
HTML – Hypertext Markup Language Markup language used to construct web pages Web pages connected to other web pages through hyperlinks Developed and overseen primarily by World Wide Web Consortium (W3C) Structure separated from style and scripting
HTML elements
The following is an example of a basic HTML element with an attribute, value, and content. UW-Platteville • • • • • Element start tag Attribute Value Element content Element ending tag
HTML document
An example of a basic web page:
History
1989 : Tim Berners-Lee working at CERN finds the need for a global hypertext system 1991 : Berners-Lee shows his hypertext system, named HTML, to the scientific community 1991 – 1993 : Various names further develop HTML 1994 : HTML2 is released as a means to standardize the growing language. Netscape developed. W3C (World Wide Web Consortium) is formed 1995 : Microsoft’s Internet Explorer developed. JavaScript initially released.
History (cont.)
1996 : CSS (Cascading Style Sheets) initially released.
1997 : HTML3.2 released, first completely W3C developed HTML version 1999 : HTML4.01 released 2004 : WHATWG (Web Hypertext Application Technology Work Group) starts HTML5 development 2006 : W3C joins HTML5 development 2008 : First working draft of HTML5 released 2010 : Steve Jobs publishes “Thoughts on Flash” 2012: HTML5 becomes a W3C Candidate Recommendation
HTML5 -
- The HTML document’s DOCTYPE is the first line declared in the document and tells the browser what version of HTML is being used HTML4.01 had multiple DOCTYPEs: HTML5 has only one, simple DOCTYPE:
HTML5 – Semantics and Structural Elements
HTML5 introduces numerous new elements to aid in properly structuring HTML5 documents: