A class can be used more the once. You're not supposed to give multiple elements the same ID ...

Learn the best practices and principles for naming CSS classes and IDs in front-end development, ... as they make it clear what each class or ID does and how it differs from others.

The ID is an attribute that specifies a unique ID for an element. The ID's name or value must be unique in the HTML document. The ID helps to point to a specific style decoration in a CSS file.The ID ...

1) there are many different kind of cssselector which we can use to applycss style to an element in html. idand class are one of them.using class attribute are easier as compared to id because of ...

The use of classes is also very common when creating webpages. Classes operate in a similar way to element IDs but rather than relating to the id of an individual element, styles for a class can ...

The CLASS attribute groups tags that are going to have a particular characteristic in common. The main use of the CLASS attribute is to relate a group of elements to style sheet rules. The CLASS ...

Ryan Boudreaux continues his tutorial on getting acquainted with jQuery by showing you how to get objects by ID and Class selectors and by Tag and Attribute.