Change Select List Option background colour on hov

Question

Is it possible to change the default background color of a select list option on hover?

HTML:

<select id="select">
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select>

I have tried option:hover { background-color: red; }, but it is of no use. Does anybody know how to do this?

Answer 1

The problem is that even JavaScript does not see the option element being hovered. This is just to put emphasis on how it's not going to be solved (any time soon at least) by using just CSS:

window.onmouseover = function(e)
{
 console.log(e.target.nodeName);
}

The only way to resolve this issue (besides waiting a millennia for browser vendors to fix bugs, let alone one that afflicts what you're trying to do) is to replace the drop-down menu with your own HTML/XML using JavaScript. This would likely involve the use of replacing the select element with a ul element and the use of a radio input element per li element.