nvd3/src/css/ohlc.css

A reusable charting library written in d3.js

.nvd3.nv-ohlcBar .nv-ticks .nv-tick {
    stroke-width: 1px;
}

.nvd3.nv-ohlcBar .nv-ticks .nv-tick.hover {
    stroke-width: 2px;
}

.nvd3.nv-ohlcBar .nv-ticks .nv-tick.positive {
    stroke: #2ca02c;
}

.nvd3.nv-ohlcBar .nv-ticks .nv-tick.negative {
    stroke: #d62728;
}