* {
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    background-color: black;
}

.canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#tetrisCanvas {
    border: 2px solid gray;
    background-color: black;
}

#nextCanvas {
    border: 2px solid gray;
    background-color: black;
    position: relative;
    right: 6px;
    bottom:250px;
}

#holdCanvas {
    border: 2px solid gray;
    background-color: black;
    position: relative;
    left: 6px;
    bottom:670px;
}