body{
    padding:0px;
    margin:0px;
    background: url("../img/petern_background.png") repeat fixed center;
}
img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 80%;
    width: auto;
}
.first-img{
    margin-top: 10vh;
}
footer{
    position: fixed;
    top:auto;
    bottom: 10px;
    width: 100%;
}
footer > img{
    max-width: 50%;
}
.footer-img{
    margin-top:auto;
    margin-bottom: 10px;
}