CSS selector , element , id and class selctor

The element id and class selector are two of the most important tools when it comes to web development. An element ID is a unique identifier for an HTML element, while a class selector is used to select multiple elements with the same style or behavior.

Element IDs are used in HTML documents to distinguish between similar elements on a page. For example, if you have two tags on a page, you can use an ID attribute on one of them to identify it from the other.

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