— Constantly updated
The W3C released the HTML5 working draft on January 22, 2008. HTML5 improves interoperability and reduces development costs by laying down precise rules on how to handle all HTML elements and how to recover from errors.
New features in HTML5 include the ability to embed audio, video, and graphics, client-side data storage, and interactive documents.
HTML5 also includes new elements such as
CSS activities
Css1 was released as a W3C recommendation on December 17, 1996. On January 11, 1999, this recommendation was revised.
Css2 was released as a W3C recommendation on January 11, 1999. Css2 adds support for media (printers and auditory devices) and downloadable fonts.
Css3 plans to break CSS into smaller modules.
Css4 starts with CSS3. Modules will be defined separately, for example CSS4 selectors can be defined in CSS3 modules.
HTML 5 new features
1 Semantic Labels
| The label | describe |
|---|---|
| header | Define the header area of the document |
| footer | Define the tail area of the document |
| nav | Define the navigation of the document |
| section | Define sections in a document |
| article | Define page-independent content areas |
| aside | Define the sidebar content of the page |
| details | Used to describe the details of a document or part of a document |
| summary | The tag contains the title of the Details element |
| dialog | Define dialog boxes, such as prompt boxes |
2 New form type
color
date
datetime
datetime-local
email
month
number
range
search
tel
time
url
week
Copy the code3 Video and audio
audio
video
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