Grid based on the flex display property.
npm i flexboxgrid --save
bower install flexboxgrid
<link rel="stylesheet" href="//cdn.jsdelivr.net/flexboxgrid/6.1.1/flexboxgrid.min.css" type="text/css" />
Add the flexbox.css development or flexbox.min.css production to your html page.
<link rel="stylesheet" href="css/flexbox.min.css" type="text/css" />