body{
	font-family: sans-serif;
}
h1 {
	text-align: center;
	color: forestgreen;
	margin: 30px 0 50px;
}
.gallery{
	margin: 10px 50px;
}
.gallery img{
	width : 230px;
	padding: 5px;
	filter: grayscale(100%);
	transition: 1s;
}
.gallery img:hover{
	filter: grayscale(0);
	transform: scale(1.1);
}