What is the difference between id and class?

Question

understand and know how to use

Answer 1

Don't think you could get a link better than this one : https://css-tricks.com/the-difference-between-id-and-class/

Answer 2

the classe defines a set of elementi whit common features,with the ID Boeing defined as a unique element .

Answer 3

id can only be used once

Answer 4

An element can have multiple class but multiple id, id are to differentiate an element from all others

Answer 5

still not very clear, need more explanations
perhaps I should come back after visiting link provided by dayve

Answer 6

an id is related to only one html element ..so when you apply css styles on that id ..only the specific element will be affected..while class can be used by any element even from different type in order to reduce repetition of code

Answer 7

id and class using in css, we using . operator and # operator

Answer 8

to me I think id and class are almost the same, both does the same work. but when representing it in the CSS sheet is different the id makes use of "#" at the beginning while class doesn't make use of "#".
for example:
<p class="one">
I am a boy
</p>

one. {
color:blue;
}

<p Id=" two">
I am a boy
</p>

#two {
color:green;
}

Answer 9

Id is only for specifying one element whereas class can specify multiple elements.

Answer 10

to me I think id and class are almost the same, both does the same work. but when representing it in the CSS sheet is different the id makes use of "#" at the beginning while class doesn't make use of "#".
for example:
<p class="one">
I am a boy
</p>

one. {
color:blue;
}

<p Id=" two">
I am a boy
</p>

#two {
color:green;
}

Answer 11

ID can only be used once while class can be used anywhere

Answer 12

Id only use one time in one page but we use class many times