JSFiddle - React, Tailwind, and code Playground

HTML

<form name="" action="" method="">
    <select name="xxx">
        <option value="1" selected="selected">aaa aaa aaa</option>
        <option value="2">bbb bbb bbb</option>
        <option value="3">ccc ccc ccc</option>
    </select>
</form>

CSS

select{
    background:black;
    color:grey;
}