JSFiddle - React, Tailwind, and code Playground

JavaScript

var x=3,y=3
for (var i=0; i<x; i++){
	var line=$('<div>', {id:"X"+i } ).css({clear:'both',width:'100%'}).appendTo('body');
	for(var j=0;j<y;j++){
		$('<div>',{id:"X"+i+"_"+j}).css({float:'left',width:10,height:10,border:'2px solid red'}).appendTo(line)
	}
}