Target HTML Elements with Selectors Using jQuery, Can't execute in PC Locally

Tell us what’s happening:
This code works absolutely fine in freecodecamp site, but it doesn’t work when i paste it in my PC to execute locally in my browser, Please help with this issue.

I have also added the library used for jQuery. as shown below in the code.

Your code so far

<script src=""></script>
  $(document).ready(function() {
    $("button").addClass("animated bounce");
<!-- Only change code above this line. -->
<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
    <div class="col-xs-6">
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36.

Link to the challenge:

I have also tried googling, but nothing helped so far, :frowning:

You might be missing the Animate.css library

Thank you very much, I have downloaded the animate.css from GitHub, and stored in a css folder, and used the respective command to work.

"link rel=“stylesheet” href=“css/animate.min.css”