what is the difference between css ID & CLASS selector?

Question

please experts explain this.its important for all who are new.this section should have those explaining .thanks everyone for being in solo learn.

Answer 1

in css / html

every element has different id (unique)
while multiple elements can have same class.

ex

in html

<div id="uid"></div>
<div class="cls"></div>

in css
we use id as
#id{}
ex
#uid{}

we use class as
.class{}
ex
.cls{}

more difference​

http://stackoverflow.com/questions/12889362/difference-between-id-and-class-in-css-and-when-to-use-it

Answer 2

any element ( img , div ,p ) can have id
but its should not be same.

it will work but you shouldn't​ do it.

Answer 3

so for div only can use id again and again in same page but for others cant.is it?bcs i have tried div in one page with same id again and again but its working so i'm confused

Answer 4

id is unique each id can only appear in a HTML file once, whereas class can be repeated in HTML file.

Answer 5

Id is always unique
class can be same for many
inheritance goes like this
element-class-id

Answer 6

div allows use of id

Answer 7

Hi

Answer 8

Fill in the blanks to give yellow background color to the element with id="intro", and black text color to the class="mytext":

#intro

{
background-color: yellow;
}

{
color: black;
}

Answer 9

#intro

{
background-color: yellow;
}

.mytext

{
color: black;
}

Answer 10

Nazmul is right