What is the difference between id and class in HTML?

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In HTML, both id and class are global attributes used to identify and style elements, but they serve different purposes and have distinct characteristics.

id Attribute:

  • The id is a unique identifier for a single HTML element.

  • Each id must be used only once per page.

  • Commonly used when you need to target one specific element, such as in JavaScript or CSS:

class Attribute:

  • The class is used to assign an element to one or more groups.

  • Multiple elements can share the same class.

  • Ideal for reusing styles across multiple elements:

In summary, use id for uniquely identifying an element, and use class when multiple elements share the same styling or behavior.

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