* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #111;
    color: #eee;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
}

#canvas-container {
    position: relative;
    width: 50%;
    height: 50%;
}

canvas {
    display: block;
}

.instructions {
    text-align: center;
    pointer-events: none; /* Let clicks pass through to canvas */
    user-select: none;
    color: white;
    white-space: nowrap; /* keep the text on one line */
}

#floor {
    border: none;
    background-color: gray;
    text-align: center;
    color: black;
}