body{
  font-family: sans-serif;
}
h1{
text-align: center;
color: forestgreen;
margin: 30px 0 50px;
}
.gallery{
	display: inline-block;
    margin-left: 20px;

}
.gallery img{
    width: 320px;
	height: 260px;
    padding: 10px;
	
	transition: 1s;
}
.gallery img:hover{
filter:grayscale(0);
transform:scale(1.1);
}