JSFiddle - React, Tailwind, and code Playground
by dsgnr
HTML
<p class="out"></p>
JavaScript
var x=34.5;
var m=13;
var n = 24;
var w = 1140;
for(i=1;i<=n;i++){
// var grid = b*i+m*(i-1);
var grid = x*i+m*(i-1);
grid = Math.round(grid*100)/100;
var output = '.box-'+i+'{width:'+grid+'px;}<br/>';
$('.out').append(output);
}