Can't get addClass to work with JQuery

Hello,

Please help! I can’t get the addClass() method to work in JQuery with the code below. What is weird is that if I replace addClass() with fadeOut() the fadeOut method works. What am I doing wrong? Why doesn’t addClass work? Sorry for the poor formatting. I don’t know how this works.

Thanks.

JQuery

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
      $('#cross').addClass('animated hinge')
    });

CSS

#matt 
{
  position: relative;
  left: 350px;
  height: 425px;
  width: 550px;
  z-index: 1;
  
}

#cross {
  position: relative;
  right: 125px;
  z-index: 2;
}

HTML

</head>
<h1>My Tribute to Matt Dillahunty</h1>

<div>
<img src='//cdck-file-uploads-global.s3.dualstack.us-west-2.amazonaws.com/freecodecamp/original/3X/7/4/74e7eeadea078af6523e1bdaf48474ddd8ec8f69.png' alt="Picture of Matt Dillahunty" class="center rounded" id="matt"></img>

<img src="http://moziru.com/images/religion-clipart-gold-cross-8.gif" alt="gold cross collapsing" width="300px" height="450px" id="cross"</img>
</div>

Thank you!! You are very kind :slight_smile:

Thanks. it works on my case.
jQuery animation doesn’t work for HTML files.

It “seems” to be working in this sample… thanks for helping

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