title: How to install flexbox?
body: <p>I'm very new to programming and I noticed someone mentioned flex box. After reading a lot about it, it seems like something that would prove useful to me. The only problem is that I'm having a lot of trouble installing it, even after searching for about an hour for help. I downloaded it from github, and put this link <code>rel="stylesheet" href="css/flexbox.min.css" type="text/css" /&gt;</code> in my head tag, but things like <code>justify-content:center</code> won't work.</p>
  
  <p>Any help would be appreciated, thanks!</p>