Question

My toggle control is working, but I would like to add a plus-minus button: when content appears it becomes “-” and when content is hidden it changes to “+”. Can you help please?

 <div class='toggle'>
    <h2>Read More</h2>
    <div class="togglebox">
      <div class="content">
        <h3>   
           <p>
              A new exciting way to broadcast your business to customers     
              A new exciting way to broadcast your business.Lorem ipsum 
           </p>
        </h3>
        <!--Content Here-->
      </div>
    </div>
 </div>

 <script>
   $(document).ready(function(){
       //Hide the tooglebox when page load
       $(".togglebox").hide();
        //slide up and down when click over heading 2
       $("h2").click(function(){
           // slide toggle effect set to slow you can set it to fast too.
           $(this).next(".togglebox").slideToggle("slow");
           return true;
       });
   });
 </script>

Answer 1

I have modified your script. You can try this

<script>
$(document).ready(function(){
//Hide the tooglebox when page load
$(".togglebox").hide();
//slide up and down when click over heading 2
$("h2").click(function(){
// slide toggle effect set to slow you can set it to fast too.
var x = $(this).next(".togglebox").css("display");  
if(x=="block")
$(this).text("+ Read More");
else
$(this).text("- Read More");
$(this).next(".togglebox").slideToggle("slow");
return true;
});
});
</script>