title: Add a close button to fieldset
body: <p>I created the html <code>fieldset</code> with some textbox inside. 
  <img src="https://i.stack.imgur.com/W5xo3.png" alt="enter image description here"></p>
  
  <p>I want to add a close button to the fieldset using only css like this.
  <img src="https://i.stack.imgur.com/lAxmN.png" alt="enter image description here"></p>
  
  <p>Is it possible? If it is, help me please. Here is my <a href="http://jsfiddle.net/ukx35/" rel="nofollow noreferrer">jsfiddle</a></p>