body {
    margin: 0;
    padding: 0;
    background-image: url('images/wald.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 100vh;
    width: 100%;
}
.counter {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: bold;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.7);
    padding: 10px 20px;
    border-radius: 10px;
}