<pre> <code class="language-html"><html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.3/jquery.min.js"></script> <script> $(document).ready(function(){ $("#flip").click(function(){ $("#panel").slideToggle("slow"); }); }); </script> <style> #panel, #flip { padding: 5px; text-align: center; background-color: #e5eecc; border: solid 1px #c3c3c3; } #panel { padding: 50px; display: none; } </style> </head> </html></code></pre> <div id="flip">Click to slide the panel down or up</div> <div id="panel">Hello world!</div>