JSFiddle - React, Tailwind, and code Playground

HTML

<select>
    <option>Option #1</option>
    <option>Option #2</option>
</select>

<select class="highlighted">
    <option>Option #1</option>
    <option>Option #2</option>
</select>

CSS

.highlighted {
    background : #ff4000;
    color : white;
}

select {
    border : 1px solid gray;
}

select::-ms-expand {
    border : none;
    background : white;    
}

select.highlighted::-ms-expand {
    background : #ff4000;
}