particlesJS('particles-js', {
    particles: {
      color: '#fff',
      shape: 'circle',
      opacity: 1,
      size: 2.5,
      size_random: true,
      nb: 100,
      line_linked: {
        enable_auto: true,
        distance: 250,
        color: '#fff',
        opacity: 0.5,
        width: 1,
        condensed_mode: {
          enable: false,
          rotateX: 600,
          rotateY: 600
        }
      },
      anim: {
        enable: true,
        speed: 2.5
      }
    },
    interactivity: {
      enable: true,
      mouse: {
        distance: 250
      },
      detect_on: 'canvas',
      mode: 'grab',
      line_linked: {
        opacity: 0.5
      },
      events: {
        onclick: {
          push_particles: {
            enable: true,
            nb: 4
          }
        }
      }
    },
    retina_detect: true
});