body {
    margin: 1rem;
    background: #e5e5e5;
    font-family: Dana;
}

canvas {
    display: block;
    margin: auto;
    border-radius: 1rem;
}

button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px 20px;
    font-size: 20px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    background: #444;
    color: #fff;
}

#exitBtn {
    display: none;
    /* top: 95%; */
}
#closeBtn{
    top : 2rem;
    left:90%;
    background: transparent;
    color: salmon;
}
#reloadBtn{
    top : 2rem;
    left:10%;
    background: transparent;
    color: seagreen;
}