<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.css" type="text/css"> <div class="container"> <button type="button" onclick="myFunction()" class="btn btn-default" style="width:100%;">show <span id="cd" class="pull-right" > <i class="fa fa-plus" aria-hidden="true"></i></span> <span id="ab" style="display: none;" class="pull-right"><i class="fa fa-minus" aria-hidden="true"></i></span> </button> <div id="panel">Hello world!</div> </div>

#panel, #flip { padding: 5px; text-align: center; background-color: #e5eecc; border: solid 1px #c3c3c3; } #panel { padding: 50px; display: none; }

var count = 0; function myFunction() { count=count+1; var a=document.getElementById("cd"); var b=document.getElementById("ab"); $("#panel").slideToggle("slow"); if(count ==1) { a.style.display='none'; b.style.display='block'; } else { a.style.display='block'; b.style.display='none'; count = 0; } }