html, body {
    height: 100%;
    width: 100%;
    font-family: "Jockey One", sans-serif;
    overflow: hidden;
}

.world {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: black;
    width: 100%;
    height: 100%;
}

.display_score {
    position: fixed;
    z-index: 1;
    color: white;
    font-size: 3rem;
    width: 20%;
    text-align: center;
    transition: 1s;
}

.high_score {
    position: fixed;
    z-index: 1;
    color: white;
    font-size: 3rem;
    top: 0;
    right: 0;
    width: 20%;
    text-align: center;
    transition: 1s;
}

.high_score.over, .display_score.over {
    display: none;
}

.overlay{
    transition: 1s;
}

.score.over {
    width: 100%;
    font-size: 5rem;
    z-index: 1;
    color: white;
    text-align: center;
}

.overlay.over {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.overlay.over button {
    font-family: "Jockey One", sans-serif;
    border-radius: 0.5rem;
    border: none;
    width: 10%;
    height: 5%;
    background-color: #088F8F;
    color: white;
    box-shadow: 0 0.05rem 0.05rem 0 rgba(0, 0, 0, 0.1), 0 0.2rem 0.8rem 0 rgba(0, 0, 0, 0.1);
    font-size: 1.5rem;
    transition: 0.4s;
    cursor: pointer;
}