h1{

	text-align: center;

	color: forestgreen;

	margin: 30px 0 50px;

}

.gallerie{

	margin: 10px 

}

.gallerie img{

	width: 100%;

	padding: 5px;

	filter: grayscale(100%);

	transition: 1s;

}

.gallerie img:hover{

	filter: grayscale(0);

}