JSFiddle - React, Tailwind, and code Playground

HTML

<select id="selectbox" class='ui-state-error'>
    <option>123</option>
    <option>456</option>
    <option>789</option>
</select>

CSS

option{
    background:orange;
}

JavaScript

$('#selectbox').css({
    'background': 'blue',
    'color':'white'
});