Hi to all

1) Improved 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.
2) Greater Consistency: As websites adopt the new HTML 5 elements we will see far greater consistency in terms of the HTML used to code a web page on one site compared to another. This will make it far easier for web designers and web developers to immediately grasp how a web page is structured even if they are brand new to it.
3) Improved Semantics: As the elements used to code a web page are standardized, using the new HTML 5 elements, the semantic value of every web page will increase. As it will be easy to see which parts of the page are headers, nav, footers, aside, etc. and most importantly know what their meaning and purpose is in a machine readable format.
4) Improved Accessibility: With HTML 5 it should be possible for assistive technologies to expand on the features they can offer their users as they can immediately build up a more detailed understanding of the structure of a page by looking at the HTML 5 elements it contains.

Thanks for reading
Have a nice day