Classes and IDs are both used to identify elements in HTML documents. The main difference between them is that a class can be used to identify multiple elements, while an ID can only be used to identify one element.

Classes:

Classes are used to identify a group of elements that share the same characteristics. For example, if you wanted to style all

elements on a page, you could create a class called “title” and assign it to each

element.

IDs:

IDs are used to identify a single element on a page. For example, if you wanted to style a specific

element on a page, you could create an ID called “main-title” and assign it to that specific

element.

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