ThePlaceHolders/static/canvas.css

* {
    padding: 0;
    margin: 0;
}

html, body {
    height: 100%;
}

.wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.navbarCont {
    background-color: grey;
    width: 100%;
    text-align: center;
    margin-bottom: 10px;
}

.canvasCont {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-color: yellow;
    border: solid black;
    border-radius: 20px;
}

canvas {
    background-color: lightblue;
}