# CSS Selectors > * CSS selectors are used to select the content the need to be style. Selectors are the part of CSS rule set. CSS selectors select HTML elements according to its attributes **There are several different types of selectors in CSS:** # 1. CSS Element Selector > The element selector selects the HTML element by name. ```Example: ``` # 2. The CSS id Selector > The id selector selects the id attribute of an HTML element to select a specific element. An id is always unique within the page so it is chosen to select a single, unique element. > > To select an element with a specific id, write a hash (#) character, followed by the id of the element. ```Example:

Hello world

``` # 3. The CSS class Selector > The class selector selects HTML elements with a specific class attribute. It is used with a period character (.) followed by the class name. ```Example:

Hello World

This is paragraph

``` # 4. CSS Universal Selector > Selects all elements. Optionally, it may be restricted to a specific namespace or to all namespaces. ```Example: ``` # 5. The CSS Grouping Selector > The grouping selector is used to select all the elements with the same style definitions. ```Example:

Hello world

welcome

small quotes

```