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Editor to share with you how to define the optgroup tag in html. I hope you will get something after reading this article. Let's discuss it together.

HTML tag

Example

Combine related options together through tags:

Volvo

Saab

Mercedes

Audi

Browser support

Most major browsers support tags.

Label definition and instructions for use

Tags are often used to group related options together.

If you have many combinations of options, you can use tabs to easily group related options together.

HTML4 . The difference between 01 and HTML5

None.

Global attribute

Tag supports global attributes, view the complete property sheet HTML global properties.

Event attribute

The tag supports all HTML event attributes.

After reading this article, I believe you have some understanding of "how to define optgroup tags in html". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for your reading!

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