The HTML5 <section> tag is used to clarify a particular section within the document so that users can see segments when viewed through the web browsers. The HTML5 <section> tag is accepted by all the primary web browsers like Internet Explorer, Google Chrome, Safari, Firefox and Opera. When the HTML5 <section> tag is used, the web page will have clear chapters, headers, footers and other types of sectioning within a document.

The HTML5 <section> tag is newly introduced in HTML5 and it is not present in HTML4.01.

To make things easier for the author, the HTML5 <section> tag is compatible with the Event Attributes and Global Attribute in HTML5.