.main-container {
    max-width: 750px;
    max-height: 600px;
    display: flex;
    justify-content: center;
    margin: 1rem auto;
    position: relative;
    align-items: center;
}

#canvas {
    object-fit: contain;
    width: 100%;
    background-image: url("/imgs/trains-counting/mine_bg.svg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    border: 1px solid grey;
    cursor: default;
}


.image-container img {
    display: none;
}