XHTML Element Name Case Sensitive

Home > HTML

Q

Is XHTML Element Name Case Sensitive?

✍: FYIcenter.com

A

Yes, XHTML element names are case sensitive. All element names must be written in lower case letters.

Here are some valid and invalid XHTML element names:

<html> - Valid name.
<HTML> - Invalid name, must use lower case letters.
<xhtml> - Invalid name, not defined by XHTML specification.
<Body> - Invalid name, must use lower case letters.

Note to HTML document authors: HTML element names are not case sensitive. But XHTML element names are case sensitive. If you are converting existing HTML documents to XHTML documents, you will get a lots of syntax errors about upper case letters used in HTML tags.

⇒ HTML Element Attributes

⇐ Entering HTML Element Content

⇑ HTML Tag and Attribute Syntax

⇑⇑ HTML Tutorials

2024-04-07, ∼3662🔥, 0💬

HTML Element Attributes
What Is an HTML Element Attribute? An element attribute is a predefined property about this element. Element attributes allows you to provide additional information to the element. Most HTML elements have some common attributes. But many HTML elements have their own specific attributes. Here are som... 2024-04-07, ∼3906🔥, 0💬

Closing XHTML 'meta' Tags
What Is wrong with my <meta> Tags? If you are converting existing HTML documents to XHTML format, you may find some <meta> tags are written as: <meta name="Author" content="FYICenter.com"&gt ;<meta name="Description" content="Tutorials, FAQs and Tips on ... 2024-04-07, ∼3722🔥, 0💬

The Opening Tag of an HTML Element
How To Write the Opening Tag of an HTML Element? When you are writing an HTML element, you must start with its opening tag, which contains the name of the element and attributes if needed. The opening tag is enclosed in a pair of angle brackets: "<" and ">". HTML element names are pred... 2024-03-23, ∼3680🔥, 0💬

XHTML Element Name Case Sensitive
Is XHTML Element Name Case Sensitive? Yes, XHTML element names are case sensitive. All element names must be written in lower case letters. Here are some valid and invalid XHTML element names: <html> - Valid name. <HTML> - Invalid name, must use lower case letters. &l... 2024-04-07, ∼3663🔥, 0💬

Closing XHTML 'br' Tags
What Is wrong with my Tags? If you are used HTML syntax, you may write your tags as in the paragraph below: I love the way you look at me, Your eyes so bright and blue. I love the way you kiss me,<br&a... 2024-03-23, ∼3516🔥, 0💬

Writing HTML Element Attributes
How To Write Element Attributes Properly? If an attribute is allowed for an XHTML element, you must write the attribute inside the opening tag of this element. Here are some rules on writing element attributes: An attribute must have a name and a value, separated by the equal sign "=". An attribute ... 2024-04-07, ∼3503🔥, 0💬

Entering HTML Element Content
How To Enter HTML Element Content? Most of HTML elements allow you to specify contents. But there are some HTML elements that do not allow any contents. If an HTML element does allow element content, you can enter the content between the opening tag and the closing tag. Here are some good examples o... 2024-04-07, ∼3502🔥, 0💬

Quoting HTML Element Attribute Values
How To Quote Element Attribute Values Properly? You know that attribute values must be quoted. But how to attribute values properly? Here are some basic rules you should remember: An attribute value must be quoted. An attribute value can be quoted with double quotes as "...". An attribute value can ... 2023-09-23, ∼2807🔥, 0💬

Ampersand Sign in HTML Attribute Values
How To Write Ampersand Sign in Attribute Values? If you need enter an ampersand sign in an attribute value, you can not enter it directly. You must replace it with entity: &amp;. Here are some interesting examples of quoted attribute values: <img src="tt.gif" alt="Tutorials &a... 2023-09-23, ∼2686🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.