uses of div 2c section and article tag in html

1<article>
2  <h2>Article Header</h2>
3  <section>
4	<h3>Section Header</h3>
5 	<p>Paragraph</p>
6	<p>Paragraph</p>
7	<p>Paragraph</p>
8  </section>
9  <section>
10 	<h3>Section Header</h3>
11	<p>Paragraph</p>
12	<p>Paragraph</p>
13	<p>Paragraph</p>
14  </section>
15</article>

1
2   <span> - used to stylize a very small part of text by CSS(Cascading Style Sheets).
3   <div> - groups content, used mainly to add a class to a groups of different tags and apply CSS.
4   <section> - groups related content, helps the  disabled people to communicate to the computer through the assistive technology , forexample: for the screen readers.etc
5   <article> - groups independent, self-contained content, helps the  disabled people to communicate to the computer through the assistive technology , forexample: for the screen readers.etc
6