Class vs ID Attributes in HTML
The class attribute in HTML is used to assign one or more class names to an element. These class names can be targeted with CSS or JavaScript to style or manipulate multiple elements at once.
The id attribute is used to assign a unique identifier to a single element. It is intended to be unique within a page and is often used to target a specific element with CSS or JavaScript.
Uniqueness:
idmust be unique in a page, whileclasscan be shared by multiple elements.Usage:
classis typically used for styling multiple elements;idis used for targeting a single element.CSS Selector:
#idNametargets an id,.classNametargets a class.JavaScript Access:
document.getElementById()for id,document.getElementsByClassName()for class.
In short: Use class to apply styles or scripts to multiple elements, and id to target a unique element on the page.