what are the new features in html5?

To get more information on html5 just visit to w3cschools.com that will help you more and even refer the site for my knowledge.

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Originally Posted by digital forum

New Elements in HTML5

The internet, and the use of the internet, has changed a lot since HTML 4.01 became a standard in 1999.

Today, several elements in HTML 4.01 are obsolete, never used, or not used the way they were intended. All those elements are removed or re-written in HTML5.

To better handle today's internet use, HTML5 also includes new elements for drawing graphics, adding media content, better page structure, better form handling, and several APIs to drag/drop elements, find Geolocation, include web storage, application cache, web workers, etc.
The New <canvas> Element
Tag Description
<canvas> Used to draw graphics, on the fly, via scripting (usually JavaScript)

New Media Elements
Tag Description
<audio> Defines sound content
<video> Defines a video or movie
<source> Defines multiple media resources for <video> and <audio>
<embed> Defines a container for an external application or interactive content (a plug-in)
<track> Defines text tracks for <video> and <audio>

New Form Elements
Tag Description
<datalist> Specifies a list of pre-defined options for input controls
<keygen> Defines a key-pair generator field (for forms)
<output> Defines the result of a calculation

New Semantic/Structural Elements

HTML5 offers new elements for better structure:
Tag Description
<article> Defines an article
<aside> Defines content aside from the page content
<bdi> Isolates a part of text that might be formatted in a different direction from other text outside it
<command> Defines a command button that a user can invoke
<details> Defines additional details that the user can view or hide
<dialog> Defines a dialog box or window
<summary> Defines a visible heading for a <details> element
<figure> Specifies self-contained content, like illustrations, diagrams, photos, code listings, etc.
<figcaption> Defines a caption for a <figure> element
<footer> Defines a footer for a document or section
<header> Defines a header for a document or section
<hgroup> Groups a set of <h1> to <h6> elements when a heading has multiple levels
<mark> Defines marked/highlighted text
<meter> Defines a scalar measurement within a known range (a gauge)
<nav> Defines navigation links
<progress> Represents the progress of a task
<ruby> Defines a ruby annotation (for East Asian typography)
<rt> Defines an explanation/pronunciation of characters (for East Asian typography)
<rp> Defines what to show in browsers that do not support ruby annotations
<section> Defines a section in a document
<time> Defines a date/time
<wbr> Defines a possible line-break

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Thanks for sharing such useful information.

HTML5 also includes new elements for drawing graphics, adding media content, better page structure, better form handling, and several APIs to drag/drop elements.

I think the new features would include: new semantic elements like <header>, <footer>, <article>, and <section>.

As mentioned, HTML5 has in its bag: new elements, attributes, and APIs. Some of the commonly(most) used elements in HTML5 have to be the media related elements like <video> and <audio> for obvious reasons. Also in use are the semantic elements which give an elegant structure to the web pages like: <section>, <article>, <aside>, <nav>, <header>, <figure>, and <figcaption> and newly added <main>

For instance, the <section> tag can be used as a container for a document and the <article> tag is suitable to articulate content as a newspaper article or a blog post such as this one. Below are listed a few tags and their suitable applications:

New form control attributes like a placeholder, autofocus, email, URL, required, pattern, number, range, color, tel, search, date, date-time, file, required as an attribute. autofocus , autocomplete=”off”, autocomplete=”on”,data list ,min and max ,enable, read-only , disable ,size.

The most interesting new API’s are:

HTML Geolocation: HTML Geolocation is used to locate a user’s position. The HTML Geolocation API is used to get the geographical position of a user.
HTML Drag and Drop: Drag and drop is a very common feature. It is when you “grab” an object and drag it to a different location.
HTML Local Storage: With local storage, web applications can store data locally within the user’s browser.

In Html5, some new tags are added to make it more simplify.

As mentioned, HTML5 has in its bag: new elements, attributes, and APIs. Some of the commonly(most) used elements in HTML5 have to be the media related elements like <video> and <audio> for obvious reasons. Also in use are the semantic elements which give an elegant structure to the web pages like: <section>, <article>, <aside>, <nav>, <header>, <figure>, and <figcaption> and newly added <main>

For instance, the <section> tag can be used as a container for a document and the <article> tag is suitable to articulate content as a newspaper article or a blog post such as this one. Below are listed a few tags and their suitable applications:

New form control attributes like a placeholder, autofocus, email, URL, required, pattern, number, range, color, tel, search, date, date-time, file, required as an attribute. autofocus , autocomplete=”off”, autocomplete=”on”,data list ,min and max ,enable, read-only , disable ,size.

The most interesting new API’s are:

HTML Geolocation: HTML Geolocation is used to locate a user’s position. The HTML Geolocation API is used to get the geographical position of a user.
HTML Drag and Drop: Drag and drop is a very common feature. It is when you “grab” an object and drag it to a different location.
HTML Local Storage: With local storage, web applications can store data locally within the user’s browser.

Video and audio are the new tags that allow you to embed a video on the website.
The nav element is used for the part of an internet site that links to different pages on the website.