I’ve had the scotch.io guide in a browser tab for months now.
  <a href="https:&#x2F;&#x2F;scotch.io&#x2F;tutorials&#x2F;a-visual-guide-to-css3-flexbox-properties" rel="nofollow">https:&#x2F;&#x2F;scotch.io&#x2F;tutorials&#x2F;a-visual-guide-to-css3-flexbox-p...</a><p>But this game was great! Ten minutes and I think I’m almost ready to ditch the crutch.