text: let sectionBox = [...document.querySelectorAll(".section-box")];
  
  
  function lazyLoad() {
      sectionBox.forEach((box, i) => {
          if (box.offsetTop < window.innerHeight + window.pageYOffset) {
              sectionBox[i].classList.add("come-in");
          }
      });
  }
  
  
  lazyLoad();
  
  
  window.addEventListener("scroll", lazyLoad);