Overleaf/services/web/frontend/stylesheets/components/nvd3_override.less

.nvd3 {
  .nv-axis {
    .tick {
      line {
        opacity: 0;
      }
    }
    path.domain {
      opacity: 0;
    }
  }
}

svg.nvd3-iddle {
  &:extend(svg.nvd3-svg);
}