html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

#info {
    pointer-events: none;
    position: absolute;
    top: 0px;
    left: 0px;
    color: grey;
    font-family: consolas;
    line-height: 1;
}

canvas {
    margin: 0px;
    display: block;
    background-color: #fff;
}

.text {
    font-size: 16px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 5px;
}

#help {
    display: none;
    position: absolute;
    top: 35px;
    right: 5px;
}