Question

Running a simple toggle — In the div I have a Googe Map Embed Code (IFRAME) Snippet. When the toggle is activated all styling and text works, however the image of the map does not display … Thoughts?

$(document).ready(function(){ 
  $("#classes").click(function(e){ 
    $("#class_breakdown").slideToggle("slow"); 
    e.preventDefault(); 
  }); 
}); 

<a href="#" id="classes">Click</a>

<div class="class_breakdown">The IFRAME Here</div>

Answer 1

You refer to something with an ID of *class_breakdown*:
$("#class_breakdown").slideToggle("slow");

However you don’t have anything with that class in your HTML. Instead it has a class of *class_breakdown* and should be referred to like:
$(".class_breakdown").slideToggle("slow");