Introduction To HTML 5
By –BALLY CHOHAN
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Contents Introduction to HTML.
Why HTML5?
HTML 5 an overview
HTML5 features
Difference between HTML4 and HTML5
Future scope
Conclusion
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Bally Chohan
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HTML : An Outline
Stands for Hyper Text Markup Language.
Not a programming language, it is a markup language.
A markup language is a set of markup tags.
Markup tags are used to describe web pages.
-Bally Chohan
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TAGSKeywords surrounded by angle brackets < > like <html>They come in pairs like <b> and </b>Common tags are :-
<html><head><div><body>
• <a>• <p>• <h1>
-Bally Chohan
5 -Bally Chohan
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Document Object ModelCross platform, language independent modelRepresents and interacts with objects in HTML
documents
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Why HTML5 ?
HTML4 hasn’t been updated for about 10 years.
XHTML was introduced but it made things stricter and
not easier.
Embedding audio/video was dependent on flash etc.
New websites have to be interactive.
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HTML4 - drawbacksIt does not adequately support web applications.
Complex structuring of web pages.
Complex DTDs
Need plug-ins to embed audio and video.
Does not support drag and drop features, editing, drawing, error handling etc
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An Overview• HTML5 (referred to as Web Applications 1.0) is an
improvement of HTML4.0 and XHTML1.0
• Work started in 2003 by W3C and WHATWG
• Released a draft version in 2008.
• A change from document markup language to a web application language.
• An attempt to enhance the functionality and flexibility of the web.
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…contd.• Provides interoperability.
• Backward compatible
• New features like form control, APIs, multimedia, structure semantics , local storage etc.
• Consistent and defined error handling
• Internal data storage. -Bally Chohan
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HTML5 FEATURESNew elements Structural elements
Multi-media elements Inline elementsNew input typesNew attributesLocal StorageNew APIs
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Structural elements
Structuring in HTML4
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Structuring in HTML5;
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HTML5 vs. HTML4
Support of multimediaLanguage for web applications rather than document
markup languageLocalized data speeding up caching .searching etc<canvas> tag for 2D graphicsAPIs for in-browser application allowing editing, drag and
drop etc
-Bally Chohan
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Future ScopeCan get rid of proprietary add-ons (like
Flash/Silverlight/JAVAFX) Web apps faster with better user experience Difference between desktop and web apps blurred.Standard for web applications
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Thank you..
Queries !! - By Bally Chohan
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