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Can you explain the difference between id and class?
The most simple way I could put it would be that id is for unique elements where as class is when you'll be using that styling on multiple elements. You can use id on multiple elements, it's simply not the right way to do things and will cause issues depending on other things you may want to do in the future.
Id short for identifier. The Id attribute can be used for a single element and tag .Id is only one for each element. It is define by (# )sign. Whereas the class attribute can be used with multiple HTML element and tags. It is define by (.) sign.
Id's can only be used on an element once, and classes can be used on elements multiple times.
Two of the most common selectors used in CSS are the “class” selector and the “ID” selector. There are many others, but this post will focus on these two, and I’ll describe the difference so you’ll know the potential effects of using either of these selectors.
id can call once but class can call at any time.
Note that ID is unique. Each element has 1 ID, each page 1 element with that ID. However, classes can be used for multiple elements. For example, you create yourself a class that would bold the text and color it to blue. So when you invoke that div, and write between, you'd get style that you designed in css for that class.
They can be combined!
there's no big difference,
I personally use id for single elements
and class to multiple ones.
Id is unique and you can use only one for one element but you can use many class in one element. Also Id is more powerful than a class.
ID can be used for one element and it is denoted by "#" where as class can include many times in one elements and it is denoted by"."
Unlike the id selector, the class selector is most often used on several elements. This allows you to set a particular style for many HTML elements with the same class. The class selector uses the HTML class attribute, and is defined with a "." A simple way to look at it is that an id is unique to only one element.