app.js

particlesJS("particles-js", {"particles":{"number":{"value":160,"density":{"enable":true,"value_area":800}},"color":{"value":"#ffffff"},"shape":{"type":"circle","stroke":{"width":0,"color":"#000000"},"polygon":{"nb_sides":5},"image":{"src":"img/github.svg","width":100,"height":100}},"opacity":{"value":1,"random":true,"anim":{"enable":true,"speed":1,"opacity_min":0,"sync":false}},"size":{"value":3,"random":true,"anim":{"enable":false,"speed":4,"size_min":0.3,"sync":false}},"line_linked":{"enable":false,"distance":150,"color":"#ffffff","opacity":0.4,"width":1},"move":{"enable":true,"speed":1,"direction":"none","random":true,"straight":false,"out_mode":"out","bounce":false,"attract":{"enable":false,"rotateX":600,"rotateY":600}}},"interactivity":{"detect_on":"canvas","events":{"onhover":{"enable":false,"mode":"bubble"},"onclick":{"enable":false,"mode":"repulse"},"resize":true},"modes":{"grab":{"distance":400,"line_linked":{"opacity":1}},"bubble":{"distance":250,"size":0,"duration":2,"opacity":0,"speed":3},"repulse":{"distance":400,"duration":0.4},"push":{"particles_nb":4},"remove":{"particles_nb":2}}},"retina_detect":true});

function reveal() {
    var reveals = document.querySelectorAll(".reveal");
  
    for (var i = 0; i < reveals.length; i++) {
      var windowHeight = window.innerHeight;
      var elementTop = reveals[i].getBoundingClientRect().top;
      var elementVisible = 150;
  
      if (elementTop < windowHeight - elementVisible) {
        reveals[i].classList.add("active");
      } else {
        reveals[i].classList.remove("active");
      }
    }
}
  
window.addEventListener("scroll", reveal);