<body>
<p>This is my first paragraph</p>
</body>
</html>
The <html> element defines the whole HTML document.
The element has a start tag <html> and an end tag </html>
The element content is another HTML element (the body)
Don't Forget the End Tag
Most browsers will display HTML correctly even if you forget the end tag:
<p>This is a paragraph
<p>This is a paragraph
The example above will work in most browsers, but don't rely on it.
Forgetting the end tag can produce unexpected results or errors.
Note: Future version of HTML will not allow you to
skip end tags.
Empty HTML Elements
HTML elements without content are called empty elements. Empty elements can
be closed in the start tag.
<br> is an empty element without a closing tag (it defines a line break).
In XHTML, XML, and future versions of HTML, all elements must be closed.
Adding a slash to the start tag, like <br />, is the proper way of closing empty elements, accepted by HTML, XHTML and XML.
Even if <br> works in all browsers, writing <br /> instead is more future
proof.
HTML Tip: Use Lowercase Tags
HTML tags are not case sensitive: <P> means the
same as <p>. Plenty of web sites use uppercase HTML tags in their
pages.
We use lowercase tags because the World Wide Web Consortium (W3C) recommends lowercase in
HTML 4, and demands lowercase tags in future versions of (X)HTML.
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