What is use of class attribute in HTML?

The “class” attribute in HTML is used to assign one or more class names to an element, allowing developers to apply styling or behavior to multiple elements with a single identifier. Unlike the “id” attribute, which must be unique within the document, the “class” attribute can be used to group elements that share similar characteristics or functionality.

Syntax

<tagname class="classname1 classname2 ...">Content</tagname>

Key Points of Class Attribute

Key Point	Description
Reusability	The same class name can be applied to multiple elements throughout the HTML document, allowing for code reuse.
Multiple Classes	Elements can have multiple classes separated by spaces, enabling the combination of styles and behaviors.
Specificity	Classes are less specific than IDs, making them suitable for styling multiple elements with similar attributes.

Features

• The “class” attribute is commonly used to apply CSS styles to groups of elements, providing consistent visual presentation across a website.
• It helps organize and manage CSS stylesheets by grouping related styling rules under a single class name.
• JavaScript can also utilize the “class” attribute to target and manipulate groups of elements with shared behavior or functionality.