What are physical tags in HTML?

Are HTML5 tags case sensitive ?

Last Updated : 27 Jan, 2022

In this article, we will discuss the overview of case sensitivity in HTML5. We will see the example related to it for more understanding. All the HTML elements/tags are case-insensitive. Case-insensitive means the tags/elements which are used in the code are understandable by the browser irrespective of the letters being the upper case or lower case classes.

Note: It is recommended to use all tags in lowercase or uppercase for best practice and better understanding.

Example 1: This example contains all the tags in lowercase.

HTML

<!DOCTYPE html>
<html>
<body>
    <h2>Welcome To GFG</h2>
    <p>Geeks for Geeks</p>
    <p>The code has lowercase body tags</p>
</body>
</html>

Output:

Example 2: This example contains some tags with both uppercase and lowercase alphabets. This example has <boDY> tag which has a combination of both upper and lowercase alphabets, but still, it does not affect the output.

HTML

<!DOCTYPE html>
<html>

<boDy>
    <h2>Welcome To GFG</h2>
    <p>Geeks for Geeks</p>
    <p>The code has both upper and lowercase tags.</p>
</boDy>
</html>

Output:

Note: You can see that both the above code snippets generate the same output.

Example 3: We used multiple tags in mixed case but we have still reached to the desired output. Tags used in mixed case in the below example are <HEAd>, </TitLe>, </heAd>, <BoDy>, <StrONg>, </STroNG>, <P>, </p>, </bR> and </HTmL>.

HTML

<!DOCTYPE html>
<HTML>
    <HEAd>
        <Title>Welcome to GFG</TitLe>
    </heAd>
    <BoDy>
        <StrONg>Hello World!</STroNg>
        <p>
          This is an example of Case-insensitivity
          in HTML </bR>Observe the output
        </p>

    </body>
</HTmL>

Output:

What are physical tags in HTML?

P

pmmore2007

Improve

Article Tags :

Similar Reads

HTML Deprecated Tags

The deprecated tags or attributes are those attributes which are replaced by some other attributes. The tag or attributes deprecated when the same attributes is achieved by some other way. They are considered outdated and may not be supported in modern browsers or future versions of HTML. HTML Depre

HTML5 - New Tags

As we know HTML5 is a new version of HTML ( Hypertext markup language). HTML5 introduced many new tags that will benefit many developers. These tags are generally supported by all major browsers. These tags belong to many aspects such as graphics, media, and forms. List of all elements introduced in

What are physical tags in HTML?

Physical Tags are used to indicate that how specific characters are to be formatted or indicated using HTML tags. Any physical style tag may contain any item allowed in text, including conventional text, images, line breaks, etc. Although each physical tag has a defined style, you can override that

JavaScript- Make Array.indexOf() Case Insensitive

Here are the different methods to make Array.indexOf() case insensitive in JavaScript1. Using JavaScript toLowerCase() Method Transform the search string and elements of the array to the lowercase using the .toLowerCase() method, then perform the simple search. JavaScriptlet a = ["GFG_1", "geeks", "

HTML Tags - A to Z List

HTML Tags are fundamental elements used to structure and format content on web pages. They provide instructions to web browsers on how to render text, images, links, and other media.HTML tags are enclosed in angle brackets < > and usually come in pairs: an opening tag and a closing tag. The cl

Container and Empty Tags in HTML

HTML uses predefined tags that tell the browser how to display the content. Tags are nothing but some instructions that are enclosed in angle braces(i.e., <>). Tags are used in many places of the webpage but many users are often confused about some tags whether it is a container or an empty ta

Case insensitive search in JavaScript

Case-insensitive: It means the text or typed input that is not sensitive to capitalization of letters, like "Geeks" and "GEEKS" must be treated as same in case-insensitive search. In Javascript, we use string.match() function to search a regexp in a string and match() function returns the matches, a

What are logical tags in HTML ?

Logical tags are used to tell the browser what kind of text is written inside the tags. They are different from physical tags because physical tags are used to decide the appearance of the text and do not provide any information about the text. Logical tags are used to indicate to the visually impai

HTML5 Semantics

HTML5 introduced a range of semantic elements that clearly describe their purpose in human and machine-readable language. Unlike non-semantic elements, which provide no information about their content, semantic elements clearly define their content. For instance, <form>, <table>, and

Essential HTML Tags

HTML stands for HyperText Markup Language. It is an important language to design web pages or websites. These websites are visible to anyone on the internet. HTML is a combination of Hypertext and Markup language. Where hypertext is a link between the webpages, and markup language is used to define