What are the Pro and Cons of HTML 5 ?

[rubina2013]

Hi everybody, I am new to web designing field. I want to know , What are the Pro and Cons of HTML 5 ?

[niharikadutt]

PROs
1. Inbuilt
Due to usability purpose the web sites made by developers are highly interactive nowadays and for this developers need to include fluid animations, stream video, play music and Social Network sites like Facebook and Twitter into the websites. Till now they have only the option to integrate it with the help of Flash or Silverlight, Flex or javascript like tools. But these consume so much time to develop and even the complexity of web application also increased. But now with the help of HTML5 it is possible to embed video and audio, high quality drawings, charts and animation and many other rich content without using any plugins and third party programmas as the functionality is built into the browser.
2. Neater Code
HTML 5 will enable web designers to use cleaner, neater code, we can remove most div tags and replace them with semantic HTML 5 elements.
3. Standardized Semantics
Now it is easy to see which parts of the page are headers, nav, footers, aside, etc as the tags are specific for these all and most importantly know what their meaning and purpose is in whole the format. By using HTML5 elements we can increase the semantic value of the web page as the codes are very standardized.
4. Fancier forms
HTML5 enables designer to use more fancier forms. Even it makes form validation native to HTML, User interface enhancements and reduced need for JavaScript (only needed in browsers that don’t support form types). There will be different type of text inputs, search and different fields for different purpose.
5. Consistency
As websites adopt the new HTML5 elements we will see more greater consistency in terms of the HTML used to code a web page on one site compared to another. This will make it more easier for designers and developers to immediately understand how a web page is structured.


CONs



Browser Support
The main problem with HTML5′s acceptance is that only modern browsers support it. By modern, I mean almost everything except for Internet Explorer. The new version…IE9 offers excellent support, but as of this writing it’s not quite out of beta. Even if it were, the majority of people will still use older versions of IE for quite some time. There are things you can do to make the language play nice with older browsers, but none of them are perfect.
The Language is a Spec
Another problem is that although parts of the language are very stable, the language itself is considered a work in progress, so technically, any of the elements could change at any time. The language is not expected to be completed for several years, which complicates things further. Thankfully, a lot of the language is considered stable and ready to use. I think it’s such a great move forward, that you should develop a Graceful Degradation approach to writing your HTML. That simply means writing HTML that will work with older browsers, but will offer users with more modern browsers an enhanced experience.
Media Licensing Issues
Another ugly fact about HTML5 is that because of licensing issues, rich media has to be compressed in multiple formats in order to be compatible with most browsers. So you’ll probably use something like mp3 audio for webkit browsers (safari, chrome), and ogg for mozilla (firefox) browsers. It involves a bit more work and it is a pain, but hopefully those issues will be resolved soon.

[Matt-APEXCGI]

Pros:
Writing HTML5 code is relatively easy to learn and use compared to most of the technologies mentioned above. Organizations can save money by writing apps that work on all the operating systems instead of reworking the app for each OS. Also the code can be used as reference for projects based exclusively on Android, Windows, or iOS.

Cons:Whenever there is a change or an added feature in iOS, Android, or Windows, the HTML5 cross-platform mobile app development tool has to reflect or factor in the change and make necessary adjustments to the code. This means cross-platform mobile application tools will always lag behind official SDKs.

[Dario McNut]

HTML5 has new syntactical features and the main problem with HTML5′s acceptance is that only modern browsers support it.

[PaulLejoy]

HTML5 Pros:

Inbuilt - embed video and audio, high quality drawings, charts and animation
Standardized Semantics - increase the semantic value of the web page
Better forms - more usable, more features
Improved Accessibility - Worked better with screen readers etc
Easier Web application developments – faster and more fully featured
Offline Application cache - View pages offline without the site breaking
Client-side database - Store data offline, use an online application without a connection
Geolocation support - Know the users location, target features and content

HTML5 Cons:

Browser Support -use of older versions of IE make the use of HTML5 features for that audience unusable
The Language is a Spec - The language itself is considered a work in progress, so technically, any of the elements could change at any time; although this is unlikely to happen
Media Licensing Issues -you have to compress media with differing technologies for different browsers

[sanamgupta]

These are the pros and cons of HTML5
Pros:
· Inbuilt
· Neater Code
· Standardized Semantics
· Fancier forms
· Consistency
· Improved Accessibility
· Fulfill the need of Web application
· Offline Application cache
· Client-side database
· Geolocation support
Cons:
· Browser Support
· The Language is a Spec
· Media Licensing Issues