<!DOCTYPE html>
<style>
#foo {
    background-color: lightgreen;
    color: red;
    padding-left: 20px;
}
#bar {
    padding-left: 20px;
    text-decoration: underline;
}
</style>
<select multiple autofocus>
    <option id="foo">foo</option>
    <option id="bar" selected>bar</option>
</select>