HTML5 is a markup language used to structure and format content on the internet. It is the latest version of HTML, the standard markup language for the World Wide Web. Some key features of HTML5 include:

  1. Improved support for audio and video: HTML5 introduces new elements for embedding audio and video content, which allows developers to create media-rich web applications without the need for third-party plugins such as Flash.
  2. Improved graphics: HTML5 introduces new canvas and SVG (Scalable Vector Graphics) elements, which allow developers to create complex graphics and animations using JavaScript.
  3. Improved forms: HTML5 introduces new form elements and attributes, which make it easier for developers to create interactive and user-friendly forms.
  4. Improved structure: HTML5 introduces new structural elements, such as header, footer, and nav, which allow developers to create more semantic and meaningful HTML.
  5. Improved performance: HTML5 introduces new APIs (Application Programming Interfaces) that allow developers to create more efficient and performant web applications.
  6. Improved accessibility: HTML5 introduces new features that make it easier to create accessible web content, such as support for ARIA (Accessible Rich Internet Applications) attributes.