title: Show a div only when a button clicked
body: <p>How can I show a div on a button click, and hide it otherwise?</p>
  
  <p>I have already the button for show:</p>
  
  <pre><code>&lt;script&gt;
   $("#show").click(function(){
          $("#content").show();
      });
  });
  &lt;/script&gt;
  
  &lt;div class="content"&gt;Content of div&lt;/p&gt;
  
  &lt;button id="show"&gt;show&lt;/button&gt;
  </code></pre>