title: How to align objects to centre of page?
body: <p>I have tried aligning the objects in my webpage with the following CSS but the <a href="https://dl.dropbox.com/s/4892yp0se30z5g7/Capture.PNG?dl=1" rel="noreferrer">objects were not positioned at the centre</a>. What should I do?</p>
  
  <pre><code>left:50%;
  margin-left:-25%;
  </code></pre>