* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #000;
}

div {
    width: 300px;
    height: 600px;
    background-color: #fff;
    position: relative;
    margin: 10px auto;
}

canvas {
    cursor: -moz-grab;
    cursor: -webkit-grab;
    border: 1px solid #000;
}