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Result Size: 625 x 571
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<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="4/w3.css">
<body>
​
<div class="w3-container">
  <h2>Filter Dropdown Click</h2>
  <p>Click on the dropdown and search for a specific link inside the input field.</p>
​
  <div class="w3-dropdown-click">
    <button class="w3-button w3-black" onclick="dropFunction()">Dropdown</button>
    <div class="w3-dropdown-content w3-bar-block w3-card w3-light-grey" id="myDIV">
      <input class="w3-input w3-padding" type="text" placeholder="Search.." id="myInput" onkeyup="filterFunction()">
      <a class="w3-bar-item w3-button" href="#about">About</a>
      <a class="w3-bar-item w3-button" href="#base">Base</a>
      <a class="w3-bar-item w3-button" href="#blog">Blog</a>
      <a class="w3-bar-item w3-button" href="#contact">Contact</a>
      <a class="w3-bar-item w3-button" href="#custom">Custom</a>
      <a class="w3-bar-item w3-button" href="#support">Support</a>
      <a class="w3-bar-item w3-button" href="#tools">Tools</a>
    </div>
  </div>
</div>
​
<script>
// Dropdown
function dropFunction() {
  var x = document.getElementById("myDIV");
  if (x.className.indexOf("w3-show") == -1) {
    x.className += " w3-show";
  } else {
    x.className = x.className.replace(" w3-show", "");
  }
}
​
// Filter
function filterFunction() {
  var input, filter, ul, li, a, i;
  input = document.getElementById("myInput");
  filter = input.value.toUpperCase();
  div = document.getElementById("myDIV");
  a = div.getElementsByTagName("a");
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