a.source === d.id || a.target === d.id ? color(d.grp) : '#b8b8b8')
      .style('stroke-opacity', a => a.source === d.id || a.target === d.id ? 1 : .2)
      .style('stroke-width', a => a.source === d.id || a.target === d.id ? 4 : 1)
    labels
      .style("font-size", b => b.name === d.name ? 18.9 : 2)
      .attr("y", b => b.name === d.name ? 10 : 0)})
      .on('mouseout', d => {
        nodes.style('opacity', 1)
        links
          .style('stroke', 'grey')
          .style('stroke-opacity', .8)
   