Demo of Accordion with all panels collapsed using JQuery UI
Header 1 ( panel No. 0 )
Text about Header 1
Header 2 ( panel No. 1 )
Text about Header 2
Header 3 ( panel No. 2 )
Text header 3
Header 4 ( panel No. 3 )
Text about Header 4.
<html>
<head>
<title></title>
</head>
<div id='accordion' class='accordion'>
<h3>Header 1 ( panel No. 0 )</h3>
<div>
Text about Header 1
</div>
<h3>Header 2 ( panel No. 1 )</h3>
<div>
Text about Header 2
</div>
<h3>Header 3 ( panel No. 2 )</h3>
<div>
Text header 3
</div>
<h3>Header 4 ( panel No. 3 )</h3>
<div>
Text about Header 4.
</div>
</div>
<script src='https://code.jquery.com/jquery-3.1.1.min.js'></script>
<script src='https://code.jquery.com/ui/1.12.1/jquery-ui.min.js'></script>
<link href='https://code.jquery.com/ui/1.12.1/themes/cupertino/jquery-ui.css' rel='stylesheet'>
<script>
$(document).ready(function() {
$( '#accordion' ).accordion({
active: false,
collapsible: true
});
})
</script>
</body>
</html>