<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>slideToggle demo</title>
<style>
#openTerms {
width: 400px;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<div id="aaa">
<div id="openTitle" style="display: inline-block;">▼</div>
<div style="display: inline-block;">제목</div>
</div>
<div id="openTerms">
This is the paragraph to end all paragraphs. You
should feel <em>lucky</em> to have seen such a paragraph in
your life. Congratulations!
</div>
<script>
$("#openTerms").hide();
$( "#aaa" ).click(function() {
$( "#openTerms" ).slideToggle( "slow" );
if(document.getElementById('openTitle').innerText=="▼")
{
document.getElementById('openTitle').innerText="▲";
}
else
{
document.getElementById('openTitle').innerText="▼";
}
});
</script>
</body>
</html>