gistfile1.txt

<script>
function updateAnimations() {
  $(".video").each(function () {
    if (
      this.getBoundingClientRect().top <= window.innerHeight &&
      this.getBoundingClientRect().bottom >= 0
    ) {
      this.classList.add("scrolled-in");
      this.classList.remove("scrolled-out");
    } else {
      this.classList.remove("scrolled-in");
      this.classList.add("scrolled-out");
    }
  });
}

function main() {
  $(document).scroll(function () {
    updateAnimations();
  });
  $(".video").each(function () {
    this.onload = updateAnimations;
  });
  updateAnimations();
}

$(main);
</script>