<!DOCTYPE html>
<html>
  <head>
    <style>
      option {color: green}
      option[selected] {color: red}
      option:not([selected]):not(:default) + option {color: green}
    </style>
  </head>
  <body onload='document.getElementById("one").removeAttribute("selected");'>
    <select size="2">
      <option id="one" selected="selected">Should be no red</option>
      <option id="two">Should be no red</option>
    </select>
  </body>
</html>