Simple grid system based on Flexbox and CSS Grid Layout. View demo here.
Add the CSS file to your project:
<link href="12columns.css" rel="stylesheet" type="text/css">
This grid system uses a 12-column grid and is fully responsive. Columns are wrapped within a grid
class.
<div class="grid">
<div class="column-xs-12 column-md-1">1</div>
...
<div class="column-xs-12 column-md-12">12</div>
</div>
12columns uses Flexbox by default and @supports
as a fallback for the browsers supporting CSS Grid Layout.