ID & Class

For setting the HTML style CSS is provide "id"  &  "class" to define your styles in SELECTOR section .

The ID 

1. The id is used to specify a style for a unique element.

2. The id uses the id attribute of the HTML element, and is defined with a "#".

example:-

#style
{
text-align:center;
color:red;
} 

The class Selector

Class is used to specify a style for group of element

1. This is used to style for many HTML element with the same class.

2. The class selector is defined as ".".

example :


p.center {text-align:center;}