Shulou(Shulou.com)06/01 Report--

Today, the editor will share with you the relevant knowledge points of case analysis of HTML documents, with detailed content and clear logic. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

This is the first paragraph.

The above example contains three HTML elements.

Analysis of HTML instance

Elements:

This is the first paragraph.

This

The element defines a paragraph in the HTML document.

This element has a start tag

And a closing tag.

.

The content of the element is: This is my first paragraph.

Elements:

This is the first paragraph.

The The element defines the body of the HTML document.

This element has a start tag and an end tag.

The element content is another HTML element (p element).

Elements:

This is the first paragraph.

The The element defines the entire HTML document.

This element has a start tag and an end tag.

The element content is another HTML element (body element).

Don't forget the closing tag.

Even if you forget to use the closing tag, most browsers will display HTML correctly:

This is a paragraph.

This is a paragraph.

The above examples can also be displayed normally in the browser, because the closing tab is optional.

But don't rely on it. Forgetting to use the closing tag can produce unpredictable results or errors.

HTML empty element

A HTML element with no content is called an empty element. The empty element is closed in the opening tag.

Is an empty element that does not close the tag

The label defines a line break).

In XHTML, XML, and future versions of HTML, all elements must be closed.

Adding a slash to the opening tag, for example, is the right way to turn off an empty element, which is accepted by HTML, XHTML, and XML.

even if

It works in all browsers, but use is actually a longer-term guarantee.

HTML hint: use lowercase tags

The HTML tag is case-insensitive:

Equivalent to

. Many websites use uppercase HTML tags.

W3CSchool uses lowercase tags because the World wide Web Consortium (W3C) recommends lowercase in HTML 4 and enforces lowercase in future (X) HTML versions.

The above is all the content of this article "HTML document example Analysis". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.