title: What's the equivalent of the container bootstrap class in purecss.io?
body: <p>I'm using <a href="http://purecss.io/">purecss</a> for my project.</p>
  
  <p>I want to have all my content center on my page like with the bootstrap container class.</p>
  
  <p>I tried to use different things using the purecss grid but I can't figure out how to do it.</p>