* {
    border: none;
    margin: 0;
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

canvas {
    position: absolute;
    background: white;
    background: radial-gradient(#FFF, #DDD);
    transform-origin: 0 0;
    width: 100vw;
    height: 100vh;
}

.ui {
    display: none;
    position: fixed;
    z-index: 5;
    bottom: 0;
    left: 0;
    width: 120px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.7);
}

.ui p {
    font-size: 11px;
    font-weight: 700;
}

.ui p.zoom {
    margin-bottom: 5px;
}

.ui p.zoom span {
    margin-right: 5px;
    border: solid 1px #777;
    cursor: pointer;
    border-radius: 2px;
}

.ui p.zoom span.zoomin {
    padding: 2px 5px;
}

.ui p.zoom span.zoomout {
    padding: 2px 8px;
}

.ui p.zoom span:hover {
    background: black;
    color: white;
}