title: reCAPTCHA box not being aligned correctly
body: <p>I can't get to align correctly the reCAPTCHA form on my registration page. Even if the <code>div</code> it is contained in has <code>text-align</code> set to <code>center</code>, it is displayed on the left of the page:<br>
  <img src="https://i.stack.imgur.com/pv5a4.png" alt="Bugged version: the reCAPTCHA is on the left">
  While if I change its <code>align</code> via JavaScript (<code>document.getElementById("recaptcha_widget_div").align = "right"</code>) it works correctly (screenshot taken in the middle of the page):<br>
  <img src="https://i.stack.imgur.com/F4X1t.png" alt="Correct version: the reCAPTCHA is in the middle"></p>
  
  <p>What am I doing wrong?</p>
  
  <p>Edit: <a href="http://jsfiddle.net/hw7rX/" rel="noreferrer">here</a>'s a fiddle with the div and the entire CSS called in the page.</p>