*{margin:0;
padding:0;}


main#canvas{
	width:100vw;
	height:100vw;}




	section {
	width: 25%;
	height: 25%; 
	float: left;}


article{
	width: 25%;
	height: 25%;
	float: left;
}


.blue
{background-color: #e2d000;}

.pink

{background-color: #4ab8af;}

.black
{background-color: #252241;}


.red
{background-color: #e82640;}





.blue:hover
{background-color: black;}

.pink:hover

{background-color: cyan;}

.black:hover
{background-color: magenta;}


.red:hover
{background-color: green;}