search.js

// JavaScript code
function search_animal() {
    let input = document.getElementById("searchbar").value;
    input = input.toLowerCase();
    let x = document.getElementsByClassName("animals");
  
    for (i = 0; i < x.length; i++) {
      if (!x[i].innerHTML.toLowerCase().includes(input)) {
        x[i].style.display = "none";
      } else {
        x[i].style.display = "block";
      }
    }
  }