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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #0a0a1a;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#gameCanvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: default;
}

#gameCanvas.grabbable {
    cursor: grab;
}

#gameCanvas.targeting {
    cursor: crosshair;
}