The HTML <br> tag is mostly used when there is a need of inserting a line break inside a paragraph. This tag is applicable in writing poems and home address. It acts as an empty tag containing no content i.e. doesn't need end tag.
Closing Bracket is optional in <br> tag.
Differences Between HTML 4.01 and HTML5
No difference in <br> tag
Differences Between HTML and XHTML
In HTML, <br> tag require no end tag
In XHTML, <br> tag require proper closing, for example: <br />
<br> tag support both global and event attributes and no default settings in CSS.
|Google Chrome||Firefox||Safari||Internet Explorer|
<p>This paragraph contains <br>a line break.</p>
<p>This paragraph contains <br>multiple <br>line breaks.</p>