6 option:disabled {color: green}
7 option#one:not([disabled]):not(:disabled) + option#two {color: red}
10 <body onload='var elem = document.getElementById(
"one");
11 elem.setAttribute(
"disabled",
"disabled");'
>
13 <option id=
"one">Should be green
</option>
14 <option id=
"two">Should be blue
</option>