<div> HTML Tag

Element of
HTML Document Structure
What does <div> HTML Tag do?
The <div> element defines an arbitrary block of content which can be placed and styled as a single unit.

Just a block

The <div> element has no particular semantic meaning. It simply defines a block of content which can be styled as a single unit on a page. Prior to the semantic elements added in HTML5, it was the main structural element defining sections of an HTML Document. Today, there are a number of better structural elements which can be styled the same way as <div> elements, but add semantic meaning, identifying their purpose in the overall document. These include:

Adoption of these semantic structural elements is not universal, but they are widely supported on browsers. So, while you will continue to see <div> elements in existing websites (and front-end frameworks like Twitter’s Bootstrap), you should use the newer elements whenever appropriate.

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Browser Support for div