JSFiddle - React, Tailwind, and code Playground

HTML

<select id="selection">
  <option>foo</option>
  <option>bar</option>
  <option>fizz</option>
  <option>buzz</option>
</select>

JavaScript

$( document ).ready(function() {
    $("#selection").css("background-color", "pink");
    $("#selection > option").css("background-color", "white");
    $("#selection option:selected").css("background-color", "pink");
});