JSFiddle - React, Tailwind, and code Playground

CSS

input{
  background-color:yellow;
}

JavaScript

var i=0;
var textboxAmount = 2;
    function add()
    {
        i++;
        var textbox = document.createElement("input");
        textbox.setAttribute("type","text");
        textbox.setAttribute("id",i);
        document.body.appendChild(textbox);
    }
    
for(var j = 0; j <= textboxAmount; j++){ 
  add()
}