HTML5 is latest version is HTML
HTML5 is the latest standard for HTML HTML5 is core technology in web development. Following its immediate predecessors HTML 4.01 and XHTML  HTML5 is a response to the fact that the HTML and XHTML in common use on the World Wide Web are a mixture of features introduced by various specifications

HTML5 Elements

HTML5 Elements

<article> HTML5 Elements Means —->
Defines an article

<aside> HTML5 Elements Means —->
Defines content aside from the page content

<audio> HTML5 Elements Means —->
Defines sound content

<bdi> HTML5 Elements Means —->
Isolates a part of text that might be formatted in a different direction from other text outside it

<canvas> HTML5 Elements Means —->
Used to draw graphics, on the fly, via scripting (usually JavaScript)

<datalist> HTML5 Elements Means —->
Specifies a list of pre-defined options for input controls

<details> HTML5 Elements Means —->
Defines additional details that the user can view or hide

<dialog> HTML5 Elements Means —->
Defines a dialog box or window

<embed> HTML5 Elements Means —->
Defines a container for an external (non-HTML) application

<figcaption> HTML5 Elements Means —->
Defines a caption for a <figure> element

<figure> HTML5 Elements Means —->
Specifies self-contained content

<footer> HTML5 Elements Means —->
Defines a footer for a document or section

<header> HTML5 Elements Means —->
Defines a header for a document or section

<keygen> HTML5 Elements Means —->
Defines a key-pair generator field (for forms)

<main> HTML5 Elements Means —->
Specifies the main content of a document

<mark> HTML5 Elements Means —->
Defines marked/highlighted text

<menuitem> HTML5 Elements Means —->
Defines a command/menu item that the user can invoke from a popup menu

<meter> HTML5 Elements Means —->
Defines a scalar measurement within a known range (a gauge)

<nav> HTML5 Elements Means —->
Defines navigation links

<progress> HTML5 Elements Means —->
Represents the progress of a task

<rp> HTML5 Elements Means —->
Defines what to show in browsers that do not support ruby annotations

<rt> HTML5 Elements Means —->
Defines an explanation/pronunciation of characters (for East Asian typography)

<ruby> HTML5 Elements Means —->
Defines a ruby annotation (for East Asian typography)

<section> HTML5 Elements Means —->
Defines a section in a document

<source> HTML5 Elements Means —->
Defines multiple media resources for media elements (<video> and <audio>)

<summary> HTML5 Elements Means —->
Defines a visible heading for a <details> element

<time> HTML5 Elements Means —->
Defines a date/time

<track> HTML5 Elements Means —->
Defines text tracks for media elements (<video> and <audio>)

<video> HTML5 Elements Means —->
Defines a video or movie

<wbr> HTML5 Elements Means —->
Defines a possible line-break