JSFiddle - React, Tailwind, and code Playground

JavaScript

var bd = document.getElementsByTagName("body")[0];
     var sel =  document.createElement("select");
      var optarr =  [];
      for(var i = 0;i<10;i++)
      { 
      	var opt = document.createElement("option");
       opt.text = i;
       opt.value = i;
       opt.className = i;
       optarr.push(opt[i]);
       sel.appendChild(opt);
     } 
      bd.appendChild(sel);
      	opt.style.width = "150px";
	opt.style.height = "200px";