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