body {
    margin: 0px;
    padding: 0px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

canvas{
    box-shadow: black 20px 10px 50px;
}

#gameOver {
    font-family:Arial, Helvetica, sans-serif; 
    color: #ffffff; 
    background-color: black;
    padding: 20px;
    position: fixed; 
    top: 0;
    left: 0;


    height: 100vh;
    width: 100vw;
    text-align: center;
    display:none;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

#gameOver a {
    border: 3px solid #ffffff;
    color: #ffffff;
    text-decoration: none; 
    padding: 10px;
    border-radius: 15px; 
    cursor: pointer;
    display: block;
    width: 200px; 
    text-align: center;
    font-size: 2em;
    display: inline-block;
}
#gameOver a:hover {background-color: #ffffff; color: #1bafdb; }