JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper" style="width: 201px">
  <div id="party" style="float:left; width: 66%; background:red">
      I am fractional!
  </div>
    <div id="tyme" style="float:left; width: 34%; background: blue;">me too</div>
</div>

JavaScript

$("div").each(function(){
    console.log(
        this.id+": "+
        $(this).width() +" "+ 
        $(this).css("width") +" "+
        window.getComputedStyle(this, null).getPropertyValue("width")
    );
});