JSFiddle - React, Tailwind, and code Playground

HTML

<select id="res">
  <option selected>red</option>
  <option>green</option>https://jsfiddle.net/c0yk2m8u/#embed
  <option>blue</option>
</select>
<div class="result"></div>
<div class="result"></div>
<div class="result"></div>
<div class="result"></div>
<div class="result"></div>

JavaScript

$('#res').on('change', function(){
  const color = this.value;
  $('.result').each(function() {
    this.textContent = color;
  });
});