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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #F5F5F5;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

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