id is used when we have to apply CSS property to one attribute only.
class is used when we have to use CSS property in many locations within the same page or different.
A class is not unique and applied to multiple elements.
What is difference between class and id in CSS?
In the CSS, a class selector is a name preceded by a full stop (“.”) and an ID selector is a name preceded by a hash character (“#”). The difference between an ID and a class is that an ID can be used to identify one element, whereas a class can be used to identify more than one.
What is a CSS class?
Definition and Usage. The .class selector selects elements with a specific class attribute. To select elements with a specific class, write a period (.) character, followed by the name of the class. You can also specify that only specific HTML elements should be affected by a class.
Can you use ID and class together?
That’s HTML, but yes, you can bang pretty much any selectors you like together. Yes, in one single division you can use both but it’s not very common. While styling you will call both so it will cause some ambiguity if you don’t properly choose “x” and “y”. Use # for ID and .
How do I identify an ID in CSS?
The id of an element should be unique within a page, so the id selector is used to select one unique element! To select an element with a specific id, write a hash (#) character, followed by the id of the element.