*{
	margin: 0;
	padding: 0;
	text-align: center;
	box-sizing: border-box;
}
img{
	width: 40%;
	height: auto;
	margin-bottom: 30px;
	filter: grayscale(100%);
	transition: .4s; 
}
img:hover{
	filter: grayscale(0%); 
}