This is a simple css grid frameworks using display:grid you can use from 1 to 12 col inside a .row
First you need set a Father container with a class .row and inside this class you can use .col- .
<div class="row">
<div class="col-2">2/12</div>
<div class="col-10">10/12</div>
<div>`
You can see this on : https://jopcode.github.io/mandanacssgrid/