body
{
    font-family: lato;
    background-image:url(Dark.jpg);
}

h1
{
    text-align: center;
    color: #fff;
    margin: 30px 0 50px;
}
.gallery
{
    margin: 10px 140px;
}
.gallery img
{
    width: 230px;
    padding: 5px;
    filter: grayscale(40%);
    transition: 1s;
}
.gallery img:hover{
    filter: grayscale(0);
    transform: scale(1.11);
}