body {
    font-family: Helvetica Neue, Arial, sans-serif;
    background: #f0f0f0;
}

h1 {
    font-size: 18pt;
}

text {
    font-size: 8pt;
    stroke: none;
    fill: black;
    pointer-events: none;
}

tspan.changes {
    text-anchor: end;
    fill: gray;
}

rect {
    stroke: #f0f0f0;
    stroke-width: 1;
    fill: white;
}

rect:hover {
    fill: yellow;
}