|Start tag||Element content||End tag|
|<h1>||My First Heading||</h1>|
|<p>||My first paragraph.||</p>|
HTML elements with no content are called empty elements. Empty elements do not have an end tag, such as the <br> element (which indicates a line break).
<!DOCTYPE html> <html> <body> <h1> First Heading</h1> <p>My first paragraph.</p>
<body> <h1>My First Heading</h1> <p>My first paragraph.</p> </body>
element defines a heading.
It has a start tag <h1 > and an end tag </h1 > .
The element content is: My First Heading.
<h1>My First Heading</h1>
element defines a paragraph.
It has a start tag <p > and an end tag </p > .
The element content is: My first paragraph.
<p>My first paragraph.</p>
<html> <body> <p>This is a paragraph <p>This is a paragraph
The example above works in all browsers, because the closing tag is considered optional.
Never rely on this. It might produce unexpected results and/or errors if you forget the end tag.
HTML elements with no content are called empty elements.
<br> is an empty element without a closing tag (the
tag defines a line break):
Empty elements can be "closed" in the opening tag like this: <br />.
HTML5 does not require empty elements to be closed. But if you want stricter validation, or if you need to make your document readable by XML parsers, you must close all HTML elements properly.
HTML tags are not case sensitive: <P> means the same as <p>.
The HTML5 standard does not require lowercase tags, but W3C recommends lowercase in HTML, and demands lowercase for stricter document types like XHTML.
At W3Schools we always use lowercase tags.