CSS Selectors Reference

CSS selectors are used to select the HTML elements you want to style.

Selector	Example	Description
.class	.intro	Selects all elements with class="intro"
#id	#firstname	Selects the element with id="firstname"
*	*	Selects all elements
element	p	Selects all <p> elements
element,element	div, p	Selects all <div> elements and all <p> elements

Example

/* Selects all elements with class="intro" */
.intro {
  background-color: yellow;
}