title: Flexible box model - display : flex, box, flexbox?
body: <p>Many of us are aware today that the older values of the <code>display</code> property like <code>inline</code> and <code>block</code> are outdated after the new flexible box model has been introduced in CSS3. But, we might find different information on the web in the same flexible box model.</p>
  
  <p>We might find mainly 3 different values of the <code>display</code> property namely <code>flex</code>, <code>box</code> and <code>flexbox</code>. What is the difference between these three flexible box models and which one to use?</p>