function filterElements() {
  const searchString = document.getElementById('searchInput').value.toLowerCase();
  let titleLinks = window.document.getElementsByClassName("recipe")
      for(let elem of titleLinks) {
            if(elem.innerText.toLowerCase().indexOf(searchString) > -1) {
              elem.style.display=""
            } else {
              elem.style.display="none"
            }
      }
}