JSFiddle - React, Tailwind, and code Playground
by Paul Leech
HTML
<select class="test">
<option>Test</option>
<option>More Test</option>
<option>Even More Test</option>
</select>
CSS
.test option:nth-of-type(odd){
color: #ff0000;
background:#ccc;
}
.test option:nth-of-type(even){
color: #00ff00;
background:#555;
}