title: PayPal: pixel.gif - Do I need it?
body: <p>At the end of my PayPal buttons theres this line:</p>
  
  <pre><code>&lt;img alt="" border="0" src="https://www.paypalobjects.com/en_AU/i/scr/pixel.gif" width="1" height="1"&gt;
  </code></pre>
  
  <p>It ruins the aesthetics of my design a little. Anyone know what its purpose is and can I remove it?</p>