body {




    background-image: url("Background.png");
    height:100%
    background-position:center;
    background-size:cover;
}
.pictures {
    display: flex;
    flex-wrap: wrap;
    align-items:center;
    gap:100px;
    padding: 40px;
    margin-left:12%;
    margin-right:10%;
    margin-top:100px;
}
.pictures img{
    width:calc(33% - 100px);
    height:80%;
    border-radius:20px;
}