title: How to fix the jQuery so the bubbles in my code get disappear when user click on it?
body: <p>I think my jQuery code is not working. When I click on the bubbles it should disappear but nothing is happening. I tried pasting this one codepen and it works over there but it does not work when I do it on sublime text or any other editor. Any help would be appreciated, thanks. </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  
  &lt;head&gt;
    &lt;title&gt;Page Title&lt;/title&gt;
    &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"&gt;&lt;/script&gt;
    &lt;style&gt;
      body {
        background-color: #ffccff;
      }
      
      .circle {
        width: 30%;
        background: #e6ffff;
        padding-bottom: 30%;
        float: left;
        margin: 1.66%;
        border-radius: 90px;
        box-shadow: 5px 5px 10px #ffffff;
      }
      
      #container {
        max-width: 600px;
        margin: 0 auto;
      }
      
      .hidden {
        visibility: hidden;
      }
      
      .visible {
        visibility: visible;
      }
    &lt;/style&gt;
    &lt;script&gt;
      $(".circle").click(function() {
        $(this).removeClass("visible").addClass("hidden");
      });
  
      $(".restart").click(function() {
        $(".circle").removeClass("hidden").addClass("visible");
      });
    &lt;/script&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
  
    &lt;div id="container"&gt;
  
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;div class="circle"&gt;&lt;/div&gt;
      &lt;button class="restart"&gt;Restart&lt;/button&gt;
    &lt;/div&gt;
  
  &lt;/body&gt;
  
  &lt;/html&gt;</code></pre>
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  </div>
  </p>