Grid based on the flex display property.
npm i flexboxgrid --save
bower install flexboxgrid
CDNJS
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/flexboxgrid/6.3.1/flexboxgrid.min.css" type="text/css" >Add the flexboxgrid.css development or flexboxgrid.min.css production to your html page.
<link rel="stylesheet" href="css/flexboxgrid.min.css" type="text/css">
