window.onload = function () {
  includeHTML();
  headerShrink();
};

window.onscroll = function () {
  headerShrink();
};



function headerShrink() {
  const header = document.getElementById('site-header');
  const scrollPosition = window.scrollY || document.documentElement.scrollTop;

  if (scrollPosition > 100) {
    header.classList.add('is-shrinked');
  } else {
    header.classList.remove('is-shrinked');
  }
}